Make use of `DeselectSurfaceCmd` in `SurfaceManagerGui`

src/Surfaces/SurfaceManagerGui.cpp

@@ -194,7 +194,7 @@ void SurfaceManagerGui::mousePressed(ofMouseEventArgs & args){
 		if(!bSurfaceSelected){
 			// unselect if no surface selected
 			projectionEditor.clearJoints();
-			surfaceManager->deselectSurface();
+			_cmdManager->exec(new DeselectSurfaceCmd(surfaceManager));
 		}
 	}else if(guiMode == GuiMode::SOURCE_SELECTION){}
 }

src/Surfaces/SurfaceManagerGui.h

@@ -17,6 +17,7 @@
 #include "MvAllTexCoordsCmd.h"
 #include "MvTexCoordCmd.h"
 #include "SelVertexCmd.h"
+#include "DeselectSurfaceCmd.h"
 
 namespace ofx {
 namespace piMapper {