Switch to a standalone stm32flash package

The new package supersedes the outdated tool-stm32duino package

Resolves #610, resolves #640, resolves #665

Author: valeros

builder/main.py

@@ -281,9 +281,8 @@ def __configure_upload_port(env):
 
     env.Replace(
         __configure_upload_port=__configure_upload_port,
-        UPLOADER=join(
-            '"%s"' % platform.get_package_dir("tool-stm32duino") or "",
-            "stm32flash", "stm32flash"),
+        UPLOADER='"%s"' % join(
+            platform.get_package_dir("tool-stm32flash") or "", "stm32flash"),
         UPLOADERFLAGS=[
             "-g", board.get("upload.offset_address", "0x08000000"),
             "-b", env.subst("$UPLOAD_SPEED") or "115200", "-w"

platform.json

@@ -300,11 +300,11 @@
       "owner": "platformio",
       "version": "~3.40100.0"
     },
-    "tool-stm32duino": {
+    "tool-stm32flash": {
       "type": "uploader",
       "optional": true,
       "owner": "platformio",
-      "version": "~1.0.1"
+      "version": "~0.7.0"
     },
     "tool-openocd": {
       "type": "uploader",