Buildable SMESs now work properly with power restore secret.

- Instead of setting SMES to output hardcoded amount, maximal value deducted from that SMESs variables is used.
- For example, the engineering SMES is quadcoil type, giving it maximal output of 1MW. However, hardcoded 200kW would be barely enough to run the station.

code/game/gamemodes/events/power_failure.dm

@@ -49,7 +49,7 @@
 		if(S.z != 1)
 			continue
 		S.charge = S.capacity
-		S.output = 200000
+		S.output = output_level_max // Most new SMESs on map are of buildable type, and may actually have higher output limit than 200kW. Use max output of that SMES instead.
 		S.online = 1
 		S.updateicon()
 		S.power_change()