[DF-2031] UIScroll binding
[DF-2031] UiScroll binding, fix for Win and add binding for preview mode
[DF-2031] Fix by review comments
[DF-2031] Fix by review comments
[DF-2031] UIScroll binding. Fix by comments
[DF-None] Fix build machine setup.
[DF-2031] - Fix by comments
[DF-2031] - Fix by comments DAVAF-2123#CFR-288180
[DF-2031] - Fix by comments
[DF-1785] Test project for color picker
[DF-1785] Color picker widget prototype
[DF-1785] Expander widget experiments
[DF-1785] Color picker refactoring
[DF-1785] Implementation of color editor sub widgets
[DF-1785] Slider control; Qt mouse grabber
[DF-1785] Gradient slider implementation
[DF-1785] Gradient slider mouse support
[DF-1785] Fixed arrow drawing
[DF-1785] slider implementation
[DF-1785] Fixed slidep positioning bugs