created abstract scripts for machine, drone, suit and mech

rougelikeaboutmechs/Machines/mech_machine.gd

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+@abstract
+extends Machine
+class_name Mech
+
+@export_category("Perry")
+@export var perry_cooldown : float
+@export var perry_damage_reduction : float
+
+
+func _ready() -> void:
+	add_on_slots = 1
+	for a in MachineGlobals.mech_body_slots :
+		machine_upgrades.set(a,null) 
+
+func class_ability() -> float:
+	#do perry
+	return perry_cooldown