* diff in as-path-set or prefix-set
* fix caveat diff can not have last line with comma in prefix-set/as-path/community-set
* Simplify fix to include indentation before parse
* remove debugger
* route-policy diffs
* fix iosxr_config crash issue
* new changes in iosxr_config after git add
* end-policy-map and end-class-map are properly indented so match misplaced children only when end-* is at the beigining also fix pep8
* Remaining config blocks of route-policy which needs exclusion from diff. added new tests
* pylint/pep8 warnings
* Review comments , sanity test fix
* shbang warning
* remove unused import
