Added Knuckles FloorFix feature (prelim) (#100)

* added early knuckles support to floor fix.

* removed commented out code

* formatted

src/tabcontrollers/FixFloorTabController.h

@@ -25,6 +25,8 @@ private:
         = 0.062f; // Controller touchpad facing upwards
     float controllerDownOffsetCorrection
         = 0.006f; // Controller touchpad facing downwards
+    float knucklesUpOffsetCorrection = 0.0285f; // touchpad facing up PRELIM
+    float knucklesDownOffsetCorrection = 0.031f; // touchpad facing down PRELIM
 
     int state
         = 0; // 0 .. idle, 1 .. floor fix in progress, 2 .. recenter in progress
@@ -42,6 +44,15 @@ private:
     float statusMessageTimeout = 0.0f;
     bool m_canUndo = false;
 
+    enum ControllerType : int
+    {
+        Controller_Unknown = 0,
+        Controller_Wand = 1,
+        Controller_Knuckles = 2,
+    };
+
+    int getControllerType( vr::TrackedDeviceIndex_t controllerRole );
+
 public:
     void initStage1();
     void initStage2( OverlayController* parent, QQuickWindow* widget );