[FEATURE] add necessary files to connect with crowdin

.crowdin.yaml

@@ -0,0 +1,6 @@
+preserve_hierarchy: 1
+files:
+  - source: /Resources/Private/Language/*.xlf
+    translation: /%original_path%/%two_letters_code%.%original_file_name%
+    ignore:
+      - /**/%two_letters_code%.%original_file_name%

.github/workflows/crowdin.yml

@@ -0,0 +1,29 @@
+name: Crowdin
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - '**.xlf'
+
+jobs:
+  sync:
+    name: Synchronize with Crowdin
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+
+      - name: Upload sources
+        uses: crowdin/github-action@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          config: '.crowdin.yml'
+          project_id: ${{ secrets.CROWDIN_PROJECT_ID }}
+          token: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
+          crowdin_branch_name: 'main'
+          upload_sources: true
+          upload_translations: false
+          download_sources: false
+          download_translations: false