Show events in conversation when group modifications happen (members updates, title, etc..)
Updated db schema by adding "selfRoles" and "joined" columns to chat_room_info table
Shown event notifications when:
- You joins group
- You leaves group
- Initial invitees for a group you are creating
- contact invited to group
- member leaves group
- member joins group
- You are the admin
- member becomes admin
- group title changed