Add `SelPrevVertexCmd` placeholder files

src/Commands/SelPrevVertexCmd.cpp

@@ -0,0 +1,21 @@
+#include "SelPrevVertexCmd.h"
+
+namespace ofx {
+namespace piMapper {
+
+SelPrevVertexCmd::SelPrevVertexCmd(BaseSurface * s){
+	_surface = s;
+}
+
+void SelPrevVertexCmd::exec(){
+
+}
+
+void SelPrevVertexCmd::undo(){
+	ofLogNotice("SelPrevVertexCmd", "undo");
+	
+}
+
+} // namespace piMapper
+} // namespace ofx
+

src/Commands/SelPrevVertexCmd.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "BaseCmd.h"
+#include "BaseSurface.h"
+
+class ofxPiMapper;
+
+namespace ofx {
+namespace piMapper {
+
+class SelPrevVertexCmd : public BaseUndoCmd {
+
+	public:
+		SelPrevVertexCmd(BaseSurface * s);
+		void exec();
+		void undo();
+
+	private:
+		BaseSurface * _surface;
+
+};
+
+} // namespace piMapper
+} // namespace ofx
+