Add default .ocm/branch-info.yaml file (#1542)

* Add default `.ocm/branch-info.yaml` file

* Increase `release-cadence` to 4w

Co-authored-by: Alexander Hebel <alexander.hebel@sap.com>

---------

Co-authored-by: Alexander Hebel <alexander.hebel@sap.com>

Author: 8R0WNI3

.ocm/branch-info.yaml

@@ -0,0 +1,5 @@
+release-branch-template: release-v$major.$minor # e.g. release-v1.0
+branch-policy:
+  significant-part: minor # major, minor, patch
+  supported-versions-count: 2
+  release-cadence: 4w # d (days), w (weeks), y | yr (years)