Events: events calendar in all profile based modules

[AlexTr]

T.10503746 T.10503748 T.10503751 T.10503759 T.10503945

• [ ] for Persons&Orgs - calendar with events where current profile joined, events from groups current profile is a member of
• [ ] for Persons&Orgs calendar add privacy option for calendar view
• [ ] for Persons&Orgs calendar add ability to choose events colors
• [ ] for Groups/Events/Spaces/etc - calendar with event which were posted into this context