As a user, I can see changes (activity) made to the Test Repository

As a user, I can see changes made to the Test Repository in an Activity like panel.
The actions recorded should be:

• creation of folder
• remove/deletion of folder
• Test Set created from folder
• Test Execution created from folder
• Test Plan created from folder
• Tests added to existing Test Set
• Tests added to existing Test Execution
• Tests added to existing Test Plan
• Tests added to Test Repository folder

Note: the exaustive list of tests should not be included in the activity log as it may be huge.