Merge from Perforce
1. Create a new class which is responsible for searching events.
2. Modify the script to exploit the SCGEventSearchCtrl class to search for events.
Exploit the SCGEventSearchCtrl class to search for the event
Exploit the SCGEventSearchCtrl class to search for the event in the config
ap zone test suite
Fix the script issue in the config ap zone test suite
Fix the script issues in the multi-cluster test suite
Fix the script issue in the FTP test suite
Fix the script issue in the soft GRE test suite