Summary: fix some misc things to build fastdebug version dragonwell8

Test Plan: build Dragonwell in fastdebug mode

Reviewed-by: luchsh,sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/82

Summary:
add new workflow configurations, will do:
- check pull request format
- build and run sanity test in release and slowdebug mode

Test Plan: checking shipped with this PR

Reviewed-by: sanhong, kuaiwei

Issue: #80