made the buttons work

I changed the code to be a basic state table (of sorts).  Now I can use
the remote to change the behavior (c button goes to sunset or sunrise,
the d button makes the rainbow happen.  The code is currently too large
for the trinket.
made buttons finally work

needed to change to basic state table
animation tweaks

made rainbow longer, added a pause before sunrise and sunset.  Slowed
down the sunset a little.