Added: Analysis panel which shows the calculated frequency response of the filters for the selected device and channel.

Improved: GUIs of GraphicEQ and Copy command can now be resized
Improved: GraphicEQ GUI can now be zoomed separately in X and Y direction using mouse wheel on rulers. Also now shows values at mouse position.
Fixed: Original APO was not released when E-APO was shutting down, leading to a memory leak.

Editor/FilterTableRow.h

@@ -38,6 +38,7 @@ public:
 
 	QRect getHeaderRect();
 	void editText();
+	QSize sizeHint() const override;
 
 protected:
 	void mouseDoubleClickEvent(QMouseEvent*) override;