Ability to move around nodes
Merge branch 'master' of https://github.com/Lolirofle/wxGraphStructure

Conflicts:
	src/GraphApp.cpp
	src/GraphApp.hpp
	src/GraphEdge.hpp
	src/GraphFrame.cpp
	src/GraphFrame.hpp
	src/GraphNode.cpp
	src/GraphNode.hpp
	src/GraphNodePane.cpp
	src/GraphNodePane.hpp