PhonicBloom Gecho Loopsynth v2 firmware

New channel #131: Karplus-Strong playable by MIDI. New channel #132: SuperSaw (stereophonic, with polyphony up to 5 notes), playable by MIDI (CC and PB wheels control waveshaping and detune). Delay setting (controlled by B3) works here, if delay is active, polyphony is reduced to 4 notes to prevent CPU overload. New channel #133: Wavetable synth, playable by MIDI. Waveforms are randomly generated. Buttons B1 and B2 control amount of waveforms mixed together (1-16), buttons B3 and B4 adjust level of filtering (smoothness of the waveform). The level of these parameters are indicated by red and orange LEDs. Infinite loopers (#22, #23 and #24) updated: if MIDI clock is present, these channels react to it by adjusting the timing of the loop accordingly. In case of channel #22, all 3 loops are synced to MIDI clock, with basic loop wrapped at every 24 pulses (quarter note), octave-up shifted loop at every 12 pulses, and octave-down shifted loop at every 48 pulses. MI Clouds (#34, #342 and #343) updated: All parameters can now be controlled manually using buttons. After pressing SET once, you will see all orange LED lights glowing, then use buttons B1 & B2 to browse through the parameters, and B3 & B4 to adjust the value. Order of parameters is: texture, reverb, density, pitch, position, size, feedback, stereo spread, dry/wet and post gain. Red LEDs indicate which parameter are you editing (9 and 10 is represented by 2 LEDs instead of 1). White and blue LEDs indicate the value of a parameter, coding units by white LEDs and tens by blue LEDs (a detailed explanation with examples will be published in the manual). The same limits/ranges apply as if the parameters are adjusted by an external MIDI controller.