kson format v0.3.0

[m4saka]

Changes:

• Updated value constraints and some notes
• Added two major categories: editor (currently only comments) and compat (information for compatibility with KSH)
• Filled in missing default values for audio effect parameters
  • (Q values for high-pass and low-pass filters are still missing)
• Changed bitcrusher default value: reduction:"0samples" -> reduction:"0samples-30samples"
• Defined "filename" as the type of audio effect parameter
  • Parameter values are now strings, so they no longer need to be separated.
• Parameter name changes: env->v, lo_freq/hi_freq->freq/freq_max.
• Parameter type changes: gain(peaking_filter) dB->rate