Unifying tech levels

Unifies tech levels between design and their products.

code/modules/shieldgen/circuits_and_designs.dm

@@ -20,7 +20,7 @@ datum/design/shield_gen_ex
 	name = "Circuit Design (Experimental hull shield generator)"
 	desc = "Allows for the construction of circuit boards used to build an experimental hull shield generator."
 	id = "shield_gen"
-	req_tech = list("bluespace" = 4, "plasmatech" = 3)
+	req_tech = list("powerstorage" = 4, "magnets" = 3)
 	build_type = IMPRINTER
 	materials = list("$glass" = 2000, "sacid" = 20, "$plasma" = 10000, "$diamond" = 5000, "$gold" = 10000)
 	build_path = "/obj/machinery/shield_gen/external"
@@ -46,7 +46,7 @@ datum/design/shield_gen
 	name = "Circuit Design (Experimental shield generator)"
 	desc = "Allows for the construction of circuit boards used to build an experimental shield generator."
 	id = "shield_gen"
-	req_tech = list("bluespace" = 4, "plasmatech" = 3)
+	req_tech = list("powerstorage" = 4, "magnets" = 3)
 	build_type = IMPRINTER
 	materials = list("$glass" = 2000, "sacid" = 20, "$plasma" = 10000, "$diamond" = 5000, "$gold" = 10000)
 	build_path = "/obj/machinery/shield_gen/external"

code/modules/shieldgen/shield_gen.dm

@@ -31,6 +31,7 @@
 							//2 use active power
 	idle_power_usage = 20
 	active_power_usage = 100
+	origin_tech="bluespace=4;plasmatech=3"
 
 /obj/machinery/shield_gen/New()
 	spawn(10)

code/modules/shieldgen/shield_gen_external.dm

@@ -2,9 +2,14 @@
 //---------- external shield generator
 //generates an energy field that loops around any built up area in space (is useless inside) halts movement and airflow, is blocked by walls, windows, airlocks etc
 
+/obj/machinery/shield_gen/external
+	origin_tech="magnets=3;powerstorage=4"
+	
+	
 /obj/machinery/shield_gen/external/New()
 	..()
 
+	
 /obj/machinery/shield_gen/external/get_shielded_turfs()
 	var
 		list