Add a per-player handicap option to the lobby.

Handicaps reduce unit health, firepower, and build speed.

mods/ra/rules/defaults.yaml

@@ -221,6 +221,11 @@
 	AttackMove:
 		AssaultMoveCondition: assault-move
 
+^PlayerHandicaps:
+	HandicapFirepowerMultiplier:
+	HandicapDamageMultiplier:
+	HandicapProductionTimeMultiplier:
+
 ^GlobalBounty:
 	GrantConditionOnPrerequisite@GLOBALBOUNTY:
 		Condition: global-bounty
@@ -234,6 +239,7 @@
 	Inherits@3: ^ClassicFacingSpriteActor
 	Inherits@bounty: ^GlobalBounty
 	Inherits@selection: ^SelectableCombatUnit
+	Inherits@handicaps: ^PlayerHandicaps
 	Huntable:
 	OwnerLostAction:
 		Action: Kill
@@ -313,6 +319,7 @@
 	Inherits@4: ^SpriteActor
 	Inherits@bounty: ^GlobalBounty
 	Inherits@selection: ^SelectableCombatUnit
+	Inherits@handicaps: ^PlayerHandicaps
 	Huntable:
 	OwnerLostAction:
 		Action: Kill
@@ -483,6 +490,7 @@
 	Inherits@4: ^SpriteActor
 	Inherits@bounty: ^GlobalBounty
 	Inherits@selection: ^SelectableCombatUnit
+	Inherits@handicaps: ^PlayerHandicaps
 	Huntable:
 	OwnerLostAction:
 		Action: Kill
@@ -532,6 +540,7 @@
 	Inherits@4: ^SpriteActor
 	Inherits@bounty: ^GlobalBounty
 	Inherits@selection: ^SelectableCombatUnit
+	Inherits@handicaps: ^PlayerHandicaps
 	Huntable:
 	OwnerLostAction:
 		Action: Kill
@@ -632,6 +641,7 @@
 	Inherits@shape: ^1x1Shape
 	Inherits@bounty: ^GlobalBounty
 	Inherits@selection: ^SelectableBuilding
+	Inherits@handicaps: ^PlayerHandicaps
 	Targetable:
 		TargetTypes: GroundActor, C4, DetonateAttack, Structure
 	Building:
@@ -737,6 +747,7 @@
 	Inherits@1: ^ExistsInWorld
 	Inherits@2: ^SpriteActor
 	Inherits@shape: ^1x1Shape
+	Inherits@handicaps: ^PlayerHandicaps
 	Interactable:
 		Bounds: 24,24
 	OwnerLostAction: