Prox sensor re-integration (#220)

* added arbitrary orientation change

* removed commented code

* updated to OVR 1.4.18

* changed two instances using new to init via array

* moved prox sensor action to haptic instead of Misc

* fixed json file, added prox sensor back for mic mute/un-mute

* added proximity sensor to audio and haptic chaperone warnings

* fixed fall-through behavior

* removed bad prox code

src/tabcontrollers/ChaperoneTabController.h

@@ -175,6 +175,8 @@ private:
 
     bool m_isHapticGood = true;
     bool m_isHMDActive = false;
+    bool m_isProxActive = false;
+    bool m_HMDHasProx = false;
 
     int m_updateTicksChaperoneReload = 0;
 
@@ -210,6 +212,8 @@ public:
     void setRightInputHandle( vr::VRInputValueHandle_t handle );
     void setLeftInputHandle( vr::VRInputValueHandle_t handle );
 
+    void setProxState( bool value );
+
     bool isChaperoneSwitchToBeginnerEnabled() const;
     float chaperoneSwitchToBeginnerDistance() const;
 
@@ -263,7 +267,7 @@ public slots:
     void setChaperoneVelocityModifierEnabled( bool value, bool notify = true );
     void setChaperoneVelocityModifier( float value, bool notify = true );
 
-    void flipOrientation();
+    void flipOrientation( double degrees = 180 );
     void reloadFromDisk();
 
     void addChaperoneProfile( QString name,