Make mpg123, fluidsynth and sndfile not link directly to lower-level audio playback libs

[ankith26]

Depends on #2470 (it should be merged before this)

EDITED description to what this PR does now (taking starbucks suggestions):

Previously, mpg123, fluidsynth and sndfile would link directly to lower-level libraries alsa, pulseaudio and others and all these would get included in the wheels. But these links aren't required for audio playback

As a side effect of these changes, our manylinux wheels should get a bit lighter (maybe 1-2 mb)

To test this PR, we need to make sure that fluidsynth-based music and mp3 music still work as before on linux (which I can test) and mac (for which I need a volunteers help)

[ankith26]

Here is the diff of the so files bundled in the wheels before and after this PR

libasound-e2127b4b.so.2.0.0
- libattr-4f2a9577.so.1.1.0
libbrotlicommon-c828db13.so.1.1.0
libbrotlidec-3b276a64.so.1.1.0
- libbz2-a273e504.so.1.0.6
- libcap-79733b59.so.2.22
- libdbus-1-5d678da9.so.3.14.14
- libdw-0-780627ce.176.so
- libelf-0-3d9de92a.176.so
- libFLAC-9c16284b.so.12.1.0
+ libFLAC-11b10a77.so.12.1.0
- libfluidsynth-78c3029a.so.3.2.2
+ libfluidsynth-13e12a66.so.3.2.2
libfreetype-ce7af30f.so.6.20.1
- libgcrypt-18957bae.so.11.8.2
libgomp-a34b3233.so.1.0.0
- libgpg-error-3f09c3c7.so.0.10.0
libharfbuzz-b5bd39f9.so.0.60821.0
- libjpeg-1944207f.so.62.4.0
+ libjpeg-034e96d7.so.62.4.0
- liblz4-af1653fb.so.1.8.3
- liblzma-004595ca.so.5.2.2
libmodplug-8c1b3b53.so.1.0.0
libmpg123-7a05540a.so.0.48.0
libogg-3f4a1572.so.0.8.5
libopus-4c85b165.so.0.9.0
libopusfile-df4005ff.so.0.4.5
- libpcre-9513aab5.so.1.2.0
libpng16-92b73642.so.16.40.0
libportmidi-bc2a3536.so.2.0.3
- libpulse-5b5d1e90.so.0.23.0
- libpulsecommon-14-9b36c523.2.so
- libpulse-simple-4ba3beb5.so.0.1.1
libSDL2-2-cdcf49c3.0.so.0.2600.5
libSDL2_image-2-d19463c5.0.so.0.2.3
libSDL2_mixer-2-705164cf.0.so.0.600.3
libSDL2_ttf-2-e58b8489.0.so.0.2000.2
- libselinux-0922c95c.so.1
libsharpyuv-5ed6246f.so.0.0.1
libsndfile-bfa200bd.so.1.0.37
- libsystemd-9be61d21.so.0.6.0
libtiff-61e60d59.so.6.0.2
libvorbis-ac399090.so.0.4.9
libvorbisenc-bb396c4a.so.2.0.12
libvorbisfile-8aced0b7.so.3.3.8
libwebp-3bee5bfa.so.7.1.8

[MyreMylar]

LGTM 👍

[oddbookworm]

Tested on mac
flac, ogg, mp3, and tests ran fine
ogx did not load
midi loaded as long as I specified a soundfont with SDL_SOUNDFONT, but crashed when I tried to restart the sound from the beginning
(see my reply to @ankith26 in the discord contributing channel for error logs)

[Starbuck5]

ogx did not load

Is this okay?

@ankith26 I believe all the audio output backends of mpg123 and fluidsynth should be turned off, because they're not relevant to SDL_mixer. This also means the SDL + libs build order doesn't need to be rearranged, so this PR will get simpler and shave even more off of dependency size?

[ankith26]

Regarding flac-in-ogg support, I realised that SDL_mixer didn't support these on their end, so I have opened a PR there, lets see how it goes. If they do merge that PR, then the fix in this PR will start to work.

I will take starbucks suggestions to simplify the diffs in this PR, and move this flac fix stuff out too in the process

[Starbuck5]

Looks good to me.

I really like how this turned out, better buildconfig -> smaller wheels.

I just checked and it looks like this takes the Linux wheels down 1.4 mb each
Much less significant effect on the Mac wheels, only down about 2 kb each