Added generated constants for available BedrockData files

this makes it easier to detect unused files, detect removed files, and also avoid typos in usages.

.github/workflows/main.yml

@@ -186,6 +186,9 @@ jobs:
       - name: Regenerate KnownTranslation APIs
         run: php build/generate-known-translation-apis.php
 
+      - name: Regenerate BedrockData available files constants
+        run: php build/generate-bedrockdata-path-consts.php
+
       - name: Verify code is unchanged
         run: |
           git diff