FI stop positions (#672)

Fixes #630

Changes:
- Support for T-144 and new T-144 signs
- Support for T-270 - T272 signs for stop positions
- Support for T-273 - T275 signs for train compositions


Tampere
(http://localhost:8000/#view=15.94/61.498645/23.774113/-43.1&style=signals):
<img width="1091" height="980" alt="image"
src="https://github.com/user-attachments/assets/275faf5c-9530-45dd-a719-0f9c30898cfb"
/>


Nokia
(http://localhost:8000/#view=16.44/61.481815/23.501053&style=signals):
<img width="1335" height="1004" alt="image"
src="https://github.com/user-attachments/assets/eb04e71c-82c6-415f-9a42-ed4d1d459010"
/>


Note some signals have multiple stop signals tagged on a single node,
which does not work.

Author: hiddewie

features/signals_railway_signals.yaml

@@ -3934,13 +3934,136 @@ features:
       - { tag: 'railway:signal:train_protection', any: [ 'FI:T-143', 'FI:T-143A' ] }
       - { tag: 'railway:signal:train_protection:form', value: 'sign' }
 
-  - description: Baliisiryhmämerkki
+  - description: Baliisiryhmämerkki (old)
     country: FI
     icon: [ default: 'fi/t-144' ]
     tags:
-      - { tag: 'railway:signal:train_protection', any: [ 'FI:T-144', 'FI:T-144A', 'FI:T-144B', 'FI:T-144C' ] }
+      - { tag: 'railway:signal:train_protection', value: 'FI:T-144' }
       - { tag: 'railway:signal:train_protection:form', value: 'sign' }
 
+  - description: Baliisiryhmämerkki (new)
+    country: FI
+    icon:
+      - default: 'fi/t-144A'
+      - match: 'railway:signal:train_protection'
+        cases:
+          - { exact: 'FI:T-144B', value: 'fi/t-144-right' }
+          - { exact: 'FI:T-144C', value: 'fi/t-144-left' }
+          - { exact: 'FI:T-144D', value: 'fi/t-144-both' }
+    tags:
+      - { tag: 'railway:signal:train_protection', any: [ 'FI:T-144A', 'FI:T-144B', 'FI:T-144C', 'FI:T-144D' ] }
+      - { tag: 'railway:signal:train_protection:form', value: 'sign' }
+
+  - description: Stopping position (single)
+    country: FI
+    icon:
+      - default: 'fi/t-270'
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { any: ['1', '2', '3', '4', '5'], value: 'fi/t-270-{}', example: 'fi/t-270-{2}' }
+        default: 'fi/t-270-unknown'
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-270B', value: 'fi/t-270-right' }
+          - { exact: 'FI:T-270C', value: 'fi/t-270-left' }
+          - { exact: 'FI:T-270D', value: 'fi/t-270-both' }
+    exampleIcon: 'fi/t-270-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-270A', 'FI:T-270B', 'FI:T-270C', 'FI:T-270D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
+  - description: Stopping position (combination)
+    country: FI
+    icon:
+      - default: 'fi/t-270'
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { regex: '^([1-5]);[^;]+$', value: 'fi/t-271-top-{}', example: 'fi/t-271-top-{1}' }
+          - { regex: '^([^;]+);[^;]+$', value: 'fi/t-271-top-unknown' }
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { regex: '^[^;]+;(1|2|3|4|5)$', value: 'fi/t-271-bottom-{}', example: 'fi/t-271-bottom-{2}' }
+          - { regex: '^[^;]+;([^;]+)$', value: 'fi/t-271-bottom-unknown' }
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-271B', value: 'fi/t-271-right' }
+          - { exact: 'FI:T-271C', value: 'fi/t-271-left' }
+          - { exact: 'FI:T-271D', value: 'fi/t-271-both' }
+    exampleIcon: 'fi/t-271-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-271A', 'FI:T-271B', 'FI:T-271C', 'FI:T-271D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
+  - description: Stopping position point
+    country: FI
+    icon:
+      - default: 'fi/t-270'
+      - default: 'fi/t-272'
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-272B', value: 'fi/t-270-right' }
+          - { exact: 'FI:T-272C', value: 'fi/t-270-left' }
+          - { exact: 'FI:T-272D', value: 'fi/t-270-both' }
+    exampleIcon: 'fi/t-272-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-272A', 'FI:T-272B', 'FI:T-272C', 'FI:T-272D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
+  - description: Train composition (single)
+    country: FI
+    icon:
+      - default: 'fi/t-273'
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { any: ['1', '2', '3', '4'], value: 'fi/t-273-{}', example: 'fi/t-273-{2}' }
+        default: 'fi/t-273-unknown'
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-273B', value: 'fi/t-273-right' }
+          - { exact: 'FI:T-273C', value: 'fi/t-273-left' }
+          - { exact: 'FI:T-273D', value: 'fi/t-273-both' }
+    exampleIcon: 'fi/t-273-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-273A', 'FI:T-273B', 'FI:T-273C', 'FI:T-273D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
+  - description: Train composition (combination)
+    country: FI
+    icon:
+      - default: 'fi/t-273'
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { regex: '^([1-4]);[^;]+$', value: 'fi/t-274-top-{}', example: 'fi/t-274-top-{2}' }
+          - { regex: '^([^;]+);[^;]+$', value: 'fi/t-274-top-unknown' }
+      - match: 'railway:signal:stop:caption'
+        cases:
+          - { regex: '^[^;]+;(1|2|3|4)$', value: 'fi/t-274-bottom-{}', example: 'fi/t-274-bottom-{4}' }
+          - { regex: '^[^;]+;([^;]+)$', value: 'fi/t-274-bottom-unknown' }
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-274B', value: 'fi/t-274-right' }
+          - { exact: 'FI:T-274C', value: 'fi/t-274-left' }
+          - { exact: 'FI:T-274D', value: 'fi/t-274-both' }
+    exampleIcon: 'fi/t-274-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-274A', 'FI:T-274B', 'FI:T-274C', 'FI:T-274D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
+  - description: Train composition point
+    country: FI
+    icon:
+      - default: 'fi/t-273'
+      - default: 'fi/t-275'
+      - match: 'railway:signal:stop'
+        cases:
+          - { exact: 'FI:T-275B', value: 'fi/t-273-right' }
+          - { exact: 'FI:T-275C', value: 'fi/t-273-left' }
+          - { exact: 'FI:T-275D', value: 'fi/t-273-both' }
+    exampleIcon: 'fi/t-275-example'
+    tags:
+      - { tag: 'railway:signal:stop', any: ['FI:T-275A', 'FI:T-275B', 'FI:T-275C', 'FI:T-275D'] }
+      - { tag: 'railway:signal:stop:form', value: 'sign' }
+
   - description: Main repeated light
     country: FI
     icon: [ default: 'fi/ko1' ]