Current fe check style check all files. But some rules should be only applied on production files. Add suppressions to suppress some rules on test files.
Adjust `RedundantImport`,`UnusedImports`,`EmptyStatement`,`NewlineAtEndOfFile`,`UpperEll`, `AvoidStarImport`, `MissingOverride` rules.
1. add rules to checkstyle 2. add github action to check incremental code in pr