Update SwitcherPanelAppDelegate.h
non-connected crash fix and auto connect

Fixed:
The interface crash while a osc command sent(for exp. by a midi keyboard) before connected to atem switcher.
New function:
Connect/reconnect ATEM automatically
Removed:
Connect button
non-connected crash fix and auto connect

Fixed:
The interface crash while a osc command sent(for exp. by a midi keyboard) before connected to atem switcher.
New function:
Connect/reconnect ATEM automatically
Removed:
Connect button
Merge branch 'master' of https://github.com/wilsonlmh/atemOSC into wilsonlmh-master

Conflicts:
	atemOSC/SwitcherPanelAppDelegate.mm