renames receive_damage() for animations to receiving_damage()

renames take_damage() for organs to receive_damage()
renames Deconstruct() to deconstruct() for atmos objects
obj_integrity, max_integrity, integrity_failure vars moved to /obj level, obj_integrity = max_integrity on New()

code/modules/modular_computers/hardware/_hardware.dm

@@ -9,8 +9,7 @@
 	var/obj/item/device/modular_computer/holder = null
 	// Computer that holds this hardware, if any.
 
-	var/obj_integrity = 200
-	var/max_integrity = 200
+	max_integrity = 200
 
 	var/power_usage = 0 			// If the hardware uses extra power, change this.
 	var/enabled = 1					// If the hardware is turned off set this to 0.