* Sfall-like sound system
(I would like a better name for this system, but the opcodes themselves are called `play|stop_sfall_sound` and I can't think of a better name)
This is a sound management system very similar to Sfall's. With a few differences:
* No support for new sound formats yet. Support for at least ogg+wav will come next
* Does support reading from .dat files, hence playing any sound effect in the base game
* Support mode=3 for speech volume. This exists in Sfall but is ignored when called from the opcode.
Also, change GaplessMusic to use this system to play the "wind2" loading sound. This restores the "vanilla" feel map transitions, so I think it's reasonable to make GaplessMusic=1 the default. I can't imagine someone wanting to change it to 0 unless they are ultra purists
* Fix global script loading on non-Windows
Previously, global scripts in .dats and in local FS didn't work due to path separator confusion.
Now:
* Hardcode global script path to "scripts\gl*.int" (windows separator)
* Use Windows fpattern matching inside of dFile (.dats, which always use windows separators)
* Use \-paths when listing found global scripts
The awkward part is having to vendor a copy of fpattern to force it to use "windows mode". It's possible that we could use this everywhere since windows allows / as separator, but that could cause bugs where we're using fpattern on the native FS. For now keeping the dFile implementation separate makes sense.
IronKing24
Mike Klaas
APAMk2
Vasilii Rogin
Alexander Batalov
Eir Nym
Jiří Malák
Jan ŠimekandAlexander Batalov