Added CMS_CORE_MODULE which is the mandatory module for ROC CMS.

Added CMS_USER.profile_name .
Improved module managements with install vs enable.
  - enabled/disabled status can also be stored in database.
Install procedure do not install all available modules anymore.

modules/auth/cms_authentication_module.e

@@ -47,6 +47,7 @@ feature {NONE} -- Initialization
 			package := "authentication"
 			create root_dir.make_current
 			cache_duration := 0
+			enable -- Is enabled by default
 		end
 
 feature -- Access