[PL]Goldstash A4B

-fixed being able to build in a part of BLU spawn

A lot of smaller changes I don't remember

Too many changes to note

-Added another spawn for BLU next to B after capturing it
-Moved "A" sign to block a massive sightline
-Removed a lot of shutter doors
-Changed cliff area between A and BLU spawn
-Extended the cart track on last point

-added a lot of healthkits and ammopacks to the back half of the map
-altered the back of A to add a building for blu to flank after capturing A
-changes to cart track
-fixed capture point signs being solid