Implement Seated Universe and Raw (Room Setup) Universe Support (#150)

* Add checks for seated improve shutdown state

Seated mode chaperone update is still broken. Normal standing mode space motion needs testing on WMR and Rift

* Fix updating chaperone on room setup completion

* Implement seated universe recenter/offsets/motion

Addresses #145

* Add Option "Allow External App Chaperone Edits"

This option is added to the settings tab. It allows external apps to modify the chaperone but only if the current offset is 0,0,0 and rotation is 0. The option is disabled by default.

src/overlaycontroller.cpp

@@ -710,7 +710,7 @@ void OverlayController::mainEventLoop()
             LOG( INFO ) << "Received quit request.";
             vr::VRSystem()->AcknowledgeQuit_Exiting(); // Let us buy some
                                                        // time just in case
-            m_moveCenterTabController.reset();
+            m_moveCenterTabController.shutdown();
             // Un-mute mic before Exiting VR, as it is set at system level Not
             // Vr level.
             m_audioTabController.setMicMuted( false, false );
@@ -748,6 +748,13 @@ void OverlayController::mainEventLoop()
         }
         break;
 
+        case vr::VREvent_SeatedZeroPoseReset:
+        {
+            m_moveCenterTabController.incomingSeatedReset();
+            LOG( INFO ) << "Game Triggered Seated Zero-Position Reset";
+        }
+        break;
+
         // Multiple ChaperoneUniverseHasChanged are often emitted at the
         // same time (some with a little bit of delay) There is no sure way
         // to recognize redundant events, we can only exclude redundant