Adding code that generates gamma "correction" tables

Maybe it's correct!  It certainly wasn't written to be used more than
once.  But maybe you'll need it, in which case, I apologize.  But at
least it's here.  Ready.  To...   I'm sorry.
This is a gamma correction table

It is experimental and may or may not produce great results, but we have
high hopes.  It was generated by ../utils/gamma_table_generator.c which
you can modify and compile using gcc -o gamma_table_generator
../utils/gamma_table_generator.c

Additionally, the last element was altered to have the LEDs stay on at
full brightness and therefore were changed to be on = 32, off = 0.