Add code formatting

Signed-off-by: Scott Robinson <[email protected]>

Author: ssx

.github/workflows/format_php

@@ -0,0 +1,26 @@
+name: Format (PHP)
+
+on:
+  push:
+    paths:
+    - '**.php'
+
+jobs:
+  php-cs-fixer:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Install
+      run: composer install
+
+    - name: Run php-cs-fixer
+      run: ./vendor/bin/php-cs-fixer fix
+
+    - uses: stefanzweifel/[email protected]
+      with:
+        commit_message: Apply php-cs-fixer changes
+        branch: ${{ github.head_ref }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+