[Azoth Sarin] Added ShowToxIdDialog.
[Azoth Sarin] Added "Get Tox ID" action.
[Azoth Sarin] Save & expose ICoreProxy_ptr in ToxProtocol.
[Azoth Sarin] Added ToxId2HR().
[Azoth Sarin] Added future-based ScheduleFunction().
[Azoth Sarin] Connect signals for loaded accounts as well.
[Azoth Sarin] Support sending friend requests.
[Azoth Sarin] ToxContact stubs.
[Azoth Sarin] Initial friend requests handling.
[Azoth Sarin] Added ThreadExceptions.
[Azoth Sarin] Changeable public name of a contact.
[Azoth Sarin] Support exceptions in ScheduleFunction().
[Azoth Sarin] Load friendslist on tox init.