Oculus VR DK2 Support

- Updated to work with 0.5.x SDK
- Uses Oculus Rendering rather than PostFX
- Stereo rendering refactored so more rendering info is grabbed from the DisplayDevice
- Implements an Offscreen Canvas for in-game gui with oculus
- Message dialogs and metrics display can now go to the OffScreen Canvas (if oculus demo is setup correctly)

Engine/source/T3D/gameBase/gameConnection.cpp

@@ -235,6 +235,7 @@ GameConnection::GameConnection()
 
 GameConnection::~GameConnection()
 {
+   setDisplayDevice(NULL);
    delete mAuthInfo;
    for(U32 i = 0; i < mConnectArgc; i++)
       dFree(mConnectArgv[i]);
@@ -673,6 +674,30 @@ bool GameConnection::getControlCameraTransform(F32 dt, MatrixF* mat)
    return true;
 }
 
+bool GameConnection::getControlCameraEyeTransforms(IDisplayDevice *display, MatrixF *transforms)
+{
+   GameBase* obj = getCameraObject();
+   if(!obj)
+      return false;
+
+   GameBase* cObj = obj;
+   while((cObj = cObj->getControlObject()) != 0)
+   {
+      if(cObj->useObjsEyePoint())
+         obj = cObj;
+   }
+
+   // Perform operation on left & right eyes. For each we need to calculate the world space 
+   // of the rotated eye offset and add that onto the camera world space.
+   for (U32 i=0; i<2; i++)
+   {
+      obj->getEyeCameraTransform(display, i, &transforms[i]);
+   }
+
+   return true;
+}
+
+
 bool GameConnection::getControlCameraDefaultFov(F32 * fov)
 {
    //find the last control object in the chain (client->player->turret->whatever...)