SynC Modular stuff

Here are some files for SynC Modular, feel free to use them as you see fit.

MACROS

sg-smsatfilter - a modification of the standard 2-pole filter with saturation in the resonance feedback path. Includes 2 macros- the basic modified filter, and a modified version of Dr. Sync's ADSR-V Filt.

sg-smfreqshift - a simplified version of the frequency shifter component used in sg-freakshift, ported to SM. I plan to work on this further eventually.