Cinders a13

-Expanded some of the buildings before A to help with RED forward holds.
-Moved back one of the healthpacks at A to be more accessible for RED.
-Added a ramp up to the crate at A.
-Nerfed the overly-strong sentry spot.
-Added new highground route into A for BLU.

-Changed name to cp_cinders
-Made the yard outside of BLU spawn a bit bigger.
-Made some of the buildings on the red side of this yard larger.
-Lowerd the highground on C, and added an area under it for RED.
-Added a tiny lip above the lower route by the deathpit.
-Moved and shrank the health and ammo in the lobby outside C..
-Shrank the yard and moved the sniper fence near B.
-Reworked the B structure and areas near it.
-Added a second door to RED forward spawn.
-Added an experimental feature allowing passing through old RED forward spawn.