Visualizers can now be placed in their own window. Closes #3.

Source/Processors/Editors/EventNodeEditor.cpp

Source/Processors/Editors/EventNodeEditor.h

Source/Processors/Editors/FilterEditor.cpp

Source/Processors/Editors/FilterEditor.h

Source/Processors/Editors/GenericEditor.cpp

Source/Processors/Editors/GenericEditor.h

Source/Processors/Editors/LfpDisplayEditor.cpp

Source/Processors/Editors/LfpDisplayEditor.h

Source/Processors/Editors/MergerEditor.cpp

Source/Processors/Editors/MergerEditor.h

Source/Processors/Editors/SignalGeneratorEditor.h

Source/Processors/Editors/SpikeDetectorEditor.h

Source/Processors/Editors/SplitterEditor.cpp

Source/Processors/Editors/SplitterEditor.h

Source/Processors/Visualization/LfpDisplayCanvas.cpp

Source/Processors/Visualization/LfpDisplayCanvas.h

Source/UI/DataViewport.cpp

Source/UI/DataViewport.h

Source/UI/EditorViewport.cpp

Source/UI/EditorViewport.h