Makes LineBuild logic require building dimensions of 1x1
Added flag to Mobile/AircraftInfo: MoveIntoShroud.
Does not change the audio feedback given.
Fix instant-use and AllowMultiple support powers.

Fixes #2185, #6090.
Merge pull request #6022 from Phrohdoh/MoveToShroud

Locomotion MovesToShroud bool.
Merge pull request #6135 from pchote/support-fix

Fix instant-use and AllowMultiple support powers.
Merge pull request #6069 from atlimit8/LineBuild-1x1Only

Makes LineBuild logic require building dimensions of 1x1
Implement new production hotkeys. Fixes #3915, #4142, #4181.
Remove obsolete key definitions.
Add queue hotkeys to RA, and make TD consistent with C&C3. Fixes #6031.
Redefine orderbutton and menu hotkeys.
Change unit selection hotkeys to match C&C3.
Change status bar hotkeys to match C&C3.
Remaining hotkey changes.
Disable multiple-queuing from the keyboard.