Integrate `AddGridColCmd` into `Application`

src/Application/ProjectionMappingState.cpp

@@ -92,6 +92,20 @@ void ProjectionMappingState::onKeyPressed(Application * app, ofKeyEventArgs & ar
 			}
 		 }
 		 break;
+	 
+	 case ']':
+		if(app->getSurfaceManager()->getSelectedSurface() != 0){
+			if(app->getSurfaceManager()->getSelectedSurface()->getType() ==
+				SurfaceType::GRID_WARP_SURFACE){
+				
+				// TODO: The command should not require projection editor pointer
+				app->getCmdManager()->exec(
+					new AddGridColCmd(
+						(GridWarpSurface *)app->getSurfaceManager()->getSelectedSurface(),
+						app->getGui()->getProjectionEditor() ));
+			}
+		 }
+		 break;
 		 
 	 default:
 		 break;

src/Application/ProjectionMappingState.h

@@ -8,6 +8,7 @@
 #include "RmSurfaceCmd.h"
 #include "AddGridRowCmd.h"
 #include "RmGridRowCmd.h"
+#include "AddGridColCmd.h"
 #include "TogglePerspectiveCmd.h"
 #include "SurfaceType.h"