Add crowdin configuration file (#2030)

crowdin-glitch.yml

@@ -0,0 +1,8 @@
+commit_message: '[ci skip]'
+files:
+  - source: /app/javascript/flavours/glitch/locales/en.json
+    translation: /app/javascript/flavours/glitch/locales/%two_letters_code%.json
+  - source: /config/locales-glitch/en.yml
+    translation: /config/locales-glitch/%two_letters_code%.yml
+  - source: /config/locales-glitch/simple_form.en.yml
+    translation: /config/locales-glitch/simple_form.%two_letters_code%.yml