Add `SurfaceManager::selectNext` and `::selectPrevVertex` method placeholders

src/Surfaces/SurfaceManager.cpp

@@ -151,6 +151,14 @@ BaseSurface * SurfaceManager::getSelectedSurface(){
 	return selectedSurface;
 }
 
+int SurfaceManager::selectNextVertex(){
+	//
+}
+
+int SurfaceManager::selectPrevVertex(){
+	//
+}
+
 void SurfaceManager::deselectSurface(){
 	selectedSurface = 0;
 }

src/Surfaces/SurfaceManager.h

@@ -43,6 +43,10 @@ class SurfaceManager {
 		BaseSurface * selectPrevSurface();
 		BaseSurface * getSelectedSurface();
 	
+		// These should trigger an event for the GUI layer to catch
+		int selectNextVertex();
+		int selectPrevVertex();
+	
 		int size();
 	
 		ofEvent <ofVec3f> vertexChangedEvent;