Add GraphViewer class to interact with EditorViewport

Builds/Linux/Makefile

Builds/MacOSX/open-ephys.xcodeproj/project.pbxproj

Builds/VisualStudio2012/open-ephys.vcxproj

Builds/VisualStudio2012/open-ephys.vcxproj.filters

JuceLibraryCode/BinaryData.cpp

Source/AccessClass.cpp

Source/AccessClass.h

Source/Processors/Editors/GenericEditor.cpp

Source/Processors/Editors/GenericEditor.h

Source/UI/EditorViewport.cpp

Source/UI/GraphViewer.cpp

Source/UI/GraphViewer.h

Source/UI/UIComponent.cpp

Source/UI/UIComponent.h

open-ephys.jucer