Fixes slow load on first run of Nyquist effect.
Revert aud-import-effects to optional, and add
aud-do-command as fast alternative.
Slow load now only on first debug use of new commands
and cached until Nyquist temp folder is cleared.
To avoid unnecessary overhead, 'Lispy' scripting commands
only provide additional validation when debugging enabled.
AUD-PRINT-COMMAND added as handy reference for new commands.
Cache may be refreshed manually with (aud-refresh-debug-data-cache).
Extreme slowdown has been reported when generating LISP
Functions for all scripting Commands, so only generate
LISP functions for built-in effects.
Additional LISP functions may be generated on demand
using (aud-import <command-name>).
