Repaint when selecting spawn location (#152)

When we wanted to click to select spawn location while not in play mode the gizmos was laggy. I added to repaint on mouse move event to always paint the exact location.

UOP1_Project/Assets/Scripts/ClickToPlaceHelper.cs

 		{
 			_spawnPosition = hit.point + Vector3.up * _verticalOffset;
 
+			if (currentGUIEvent.type == EventType.MouseMove)
+			{
+				HandleUtility.Repaint();
+			}
 			if (currentGUIEvent.type == EventType.MouseDown
 				&& currentGUIEvent.button == 0) // Wait for Left mouse button down
 			{