Implemented the following actions: stick the window on the left/right or maximize it,
with the following shortcuts:
- Win key + Arrows;
- drag to left/right screen border;
- double-click on top/bottom.
CORE-12845
An owned popup window should be hidden when its owner window was minimized.
- Add IntWinListOwnedPopups function.
- Fix ShowWindow and ShowOwnedPopups functions.
CORE-14818
See also: CORE-3326, CORE-12252, CORE-13168, and CORE-14824.
