[QoL] Squads: Group Movement + RTS Style Control Groups 0.3

• End mode options are now correctly saved and persist between saves
• 0 hotkey now correctly maps to squad #10

DLL fixes in next VP Release (whichever comes after 4.5.1):

• Fix a bug where EUI unit flags could incorrectly show squad numbers for units created shortly after a unit in a squad dies
• Fix a bug where issuing squad move orders to a unit that just had a squad movement mission interrupted (either by user or by seeing enemy unit) would result in them continuing on their previous path

• Can now remove a unit from the squads UI by right clicking the unit entry
• Added reset squad button to empty current squad
• Added new configuration options
  • Toggle squad highlight on unit selection
  • Toggle squad number display under unit flag
  • Select squad movement end behavior between "alert on arrival", "wake on each unit arrive", and "wake on squad arrival"(original behavior)