Add git blame ignore file and enable formatting worlfkow

Enable formatting in workflow and set git blame ignore file

Author: bkhouri

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# Formatting code base
+19ab5e34677a7fea521b682ee35c974f7aaac0fb

.github/workflows/pull_request.yml

@@ -36,5 +36,5 @@ jobs:
       license_header_check_enabled: false
       unacceptable_language_check_enabled: false
       api_breakage_check_enabled: false
-      format_check_enabled: false
+      format_check_enabled: true
       shell_check_enabled: false