Make control group hotkeys configurable

- Split control groups management to its own interface
- Add hotkeys for selecting, creating, adding to and combining with control groups
- Add a ControlGroups widget to manage the player interaction

mods/cnc/sequences/misc.yaml

@@ -270,6 +270,7 @@ pips:
 	groups: pdigits
 		Length: *
 		Offset: 9, 5
+		Frames: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
 	pip-hazmat: pip-hazmat
 		Offset: -3, 0