Fixed Amiga audio filter error in v1.79 (pi instead of 2pi in calculation)

• Fixed loading of WAV samples of the WAVE_FORMAT_EXTENSIBLE type
• Fixed some small issues with the sampling feature
• Removed unnecessary custom math functions in the source code

When loading .IFF samples, always set volume to max (64) instead of reading the sample volume from the IFF header.
This is because many IFFs used different ranges for the sample volume, so the resulting sample volume value would often be zero instead of max.

• Re-added audio dithering for 16-bit audio output
• Bugfix: Songs rendered with MOD2WAV would not have the exact same data integrity for every render
• Windows/macOS: Updated SDL to v2.32.10

• Bugfix: Some WAVs from MOD2WAV would not play in some players/editors
• Fixed SDL2 thread resource leaks (Disk Op. and MOD2WAV)
• Windows/macOS: Updated SDL to v2.32.8

• Set Sample Offset (9xx) now works on >64kB samples
• You can now use SHIFT+(ALT/CTRL)+left/right/up/down to adjust the sample data mark in the sampler screen
• SHIFT+(ALT/CTRL)+z = play sample range in the sample editor screen
• Windows/macOS: Updated SDL to v2.32.6

• Crash-fix: If you attempted to move the loop start point of a single-cycle waveform while the tuning tone was enabled, the program would crash
• Don't bypass window compositor in Linux (fixes broken window manager visuals)
• Fixed accidental playback stop in the classic "dirt.mod" module by using "F00" effect heuristics on module load

• Sample loops are now updated properly when dragging the loop points while the sample is playing (while the song is playing, that is)
• Windows/macOS: Updated SDL to v2.32.4

• Set sample volume to max ($40/64) if pasting sample data into an empty sample
• Bug fix: Redraw metronome channel text (Edit Op. #2) if pressing ALT+SHIFT+M
• macOS/Linux: Also check for config files in ~/.config/protracker/
• Windows/macOS: Updated SDL to v2.30.10

• MOD2WAV now exports to the current "modules" path, instead of the current open path (regardless of samples/modules mode) in Disk Op.
• Windows/macOS: Updated SDL to v2.30.9