ESP32 AcidBox v1.3.3

This is probably the last release for ESP32 boards. All the following releases would require ESP32S3, because it has faster PSRAM and more flexible memory management.

AcidBox v.1.2.5b.

A lot of changes, including:

• cutoff-reso and distortion-overdrive gain compensation, using bilinear lookup matrices
• thread timing optimizing
• drum sample sets improvement
• Jukebox advance
• de-clicker is a biquad lo-pass filter now (was a median filter)
• some more functions go to lookup tables: sin(), cos()
• minor fixes

AcidBox v.1.0.2.

Emulation of 303 + 303 + 808 synthesizers with effects running on two cores of a ESP32. MIDI managed.
See config.h for options.
This release includes hotfixes for drum sampler LP/HP filter and gain compensation for overdrive and wavefolder effects.