Re-arranges Areas - Stage 2

Maintenance Cleanup. This is.. a big one. Sorry.

Ensures each separate maintenance section now has a unique name and relevantly named icon. 
The former will make the lives easier for everyone IG. For example, no longer are there three separate sections all called "Medbay maintenance" (the last divide caused by the new substations).

The latter will simply make it easier for mappers to see what's what. No more A/P or A/S Maint. icons literately everywhere.

I was going to do an area cleanup as well, remove everything we didn't use but this might mess with downstreamers so I skipped it for now.

Includes @mwerezak's fore solar area changes so that any conflicts referring to the fore solars, and there likely will be due to the cable changes, can be resolved using the dev version.