Engine: * Added new script call: OnGearDamage(GearID : integer, Damage : integer) - triggered once gears are damaged * Renamed script call: OnResurrect is now called OnGearResurrect * Added new script functions: CampaignLock(key : string), CampaignUnlock(key : string) - toggles for (not yet implemented) campaign access and progress flags

[patterns]
**.h = native
**.c = native
**.cpp = native
**.lua = native
**.txt = native
**.pas = native
**.inc = native