Remove unused import
Rename PermissionsManager to EntityPermissionsManager
Add UserEvaluationPermissions
Add EvaluationPermissionsManager skeleton code
Relocate user group methods from permissions manager to user manager. Continue renaming PermissionsManager to EntityPermissionsManager
Wire up evaluation permissions manager to the service level
Wire up evaluation permissions manager to the controller level
Merge pull request #524 from eric-wu/develop

Partial change for PLFM-1977