newRPL on HP 39gs

[Claudio L.]

Status update:
I created almost everything needed to release 3 different targets simultaneously: 40gs, 39gs and the 50g. Almost because I still need to recreate the transcendental tables for the smaller footprint of the 39gs.
Since that takes some work and I decided to do it, I'm also reworking the tables to switch from decimal CORDIC to binary. Not using decimal in the loop should increase speed substantially, although a conversion to decimal will be needed at the end. We'll see how much faster it is (if any).
And the tables required have a reduction in size due to the more compact storage (going from 8 digits in 32-bits to 9 and a fraction), plus the fact only 4 tables are needed instead of 8 (but those 4 are larger than the other 8, still a reduction in size).