This takes care of the double free and also cleans up a lot of the skin
api. However, the gl renderer lost top/bottom colors (for now). Vulkan
skins still don't work yet.
It should be much harder for a malicious server to crash the client
(there were a few holes in there still).
Also, set the fallback (server didn't specify) top/bottom colors to be
such that the default colors from the skin are used instead of white.
I never liked it, but with C2x coming out, it's best to handle bools
properly. I haven't gone through all the uses of int as bool (I'll leave
that for fixing when I encounter them), but this gets QF working with
both c2x (really, gnu2x because of raw strings).
like normal, f_skins reports the average percent fullbright for all loaded
skins, and f_skins skinname reports the fullbright percent for a signle
skin. cl_freply controls the time in seconds before another query can be
made. Set it to 0 to disable them. More queries will be added later.
The table for accessing special characters from the console has been
tweaked a bit. Expect it to get tweaked more in the future.
r_local.h, r_shared.h, client.h and render.h at the same time (couldn't get
away from that:/) verly likely to be lots of breakage (eg, player and eye
models are NOT checksummed atm), but everything builds
