Add some friends/chat functionality.
Merge branch 'master' of github.com:F16Gaming/SwitchBladeSteam

Signed-off-by: F16Gaming <adam.hellberg95@gmail.com>

Conflicts:
	F16Gaming.SwitchBladeSteam.Steam/Client.cs
	F16Gaming.SwitchBladeSteam.Steam/FriendsManager.cs