Add "My Friends" and "My Groups" activity tabs on logged-in user's "Friends" and "Groups" pages

[r-a-y]

When you're logged in, navigate to:
​http://testbp.org/members/YOURUSERNAME/friends
​http://testbp.org/members/YOURUSERNAME/groups

It would be nice to see a "My Friends' Activity" item as a sub-nav link under "Friends" and likewise, a "My Group Activity" item as a sub-nav link under "Groups".

This can either duplicate the "My Friends" and "My Groups" activity functionality from the BP homepage.

Or you can directly link to these homepage tabs. I tried directly linking to these tabs when I was logged in:
​http://testbp.org/members/YOURUSERNAME/activity/my-friends/
​http://testbp.org/members/YOURUSERNAME/activity/my-groups/

But these appear to be AJAX markers instead of actual page slugs.

Either way, I believe this will help usability.

[r-a-y]

Implemented in trunk.

A minor request to rename the sub-tabs is mentioned in ticket #1764