Create validate_stringtables.yml

.github/workflows/validate_stringtables.yml

@@ -0,0 +1,14 @@
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - 'master/**/stringtable.xml'
+jobs:
+  validate_stringtables:
+    name: Checks stringtable for correct format
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check Stringtables
+        run: python3 tools/stringtable_validator.py
+      - name: Check Strings