add env/forceSuccess/forceError for AsyncCommand
add retry for AsyncCommand
add verify_job_status
use Sys::Statistics::Linux to check host detail on Linux
add host details & case name for detail report
	modified:   README.md
	modified:   STEP/ASyncCmd.pm
	modified:   STEP/CommonUtil.pm
	modified:   STEP/Helper.pm
	modified:   advanced_settings.pm
	modified:   demo_config.pm
	modified:   lib/5.14.2/x86_64-linux/perllocal.pod
	modified:   nwtn.pm
	modified:   slave.pl
	modified:   step