V6.3.0

• Added support for RAD Studio 10.1 Berlin
• Implemented #607: Disabled checkbox images should be available
• Fixed #612: hotkey handing and toReverseFullExpandHotKey
• Fixed #602: Dangling WM_Timer and doubled OnChange calls
• Fixed #606: High DPI Inheritance of Form. TBaseVirtualTree.ChangeScale() now respects inherited property ScalingFlags
• Fixed #608: Horizontal lines paint bug on scroll.
• Fixed #605 : If a new node is selected by left click, OnChange event should not fire with nil in-between.
• TBaseVirtualTree.EnsureNodeSelected() no longer changes scroll position unless necessary to make the selected node visible.
• Pull request #609: Updated unit "Contributions/GenericWrapper/VirtualTreeWrapper.pas"
• Started adding unit tests with DUnitX.
• Minor tweaks.