Include AKWF single cycle waveforms in firmware

[maks]

Given we have a reasonable amount of capacity for the firmware size we could store single cycle waveforms directly in the firmware rather than requiring them to be loaded as sampler instruments.

The intention would be to use the public domain adventure kid pack. They are only 600 samples per wave, include utilities for converting to header files and which would also allow for creating images for use in documentation and PNGs are already provided.

We could even make this into a dedicated instrument vs users needing to load them in sampler instruments as the a dedicated instrument could be optimised to consume much less ram than the current sampler instruments.

[maks]

Actually turns out the existing scripting already creates ascii art representations of the waves.