replace two area shield gens with hull shield gens

Signed-off-by: Cael Aislinn <cael_aislinn@yahoo.com.au>
tweaks to a couple of supply packs, adds supply packs for hull shield gen circuitry

Signed-off-by: Cael Aislinn <cael_aislinn@yahoo.com.au>
shield gens/caps: minor tweaks and cleanups, removed upper limits on some settings

Signed-off-by: Cael Aislinn <cael_aislinn@yahoo.com.au>