[MAP] Replaces area turrets with porta turrets

Removes all /turrets from maps and replaces them with /porta_turrets
Makes emagged normal porta turrets ignore control panels and correctly update their sprite laser version
Transposes turret control panel to porta turrets

Porta turrets offer more functionality than turrets, work off LoS instead of area (ew) and have prettier looking code, I find them all around a better option.

I'd like to outright remove the area based turrets from the code but that seems more appropriate for a separate PR.