LENYA YA VSE SLOMAL
All main functions transfered to GraphScene
GraphItem renamed in GraphNode
Delete function setFile and index and model from graphnode
Merge branch 'develop' of https://github.com/Zo0MER/graph_editor into develop

Conflicts:
	graph_editor.pro
	graph_editor.pro.user
	graphscene.cpp
	graphscene.h
	mainwindow.h