(42S) HP 42S/ DM42: Nelder Mead Optimization

[pinkman]

Very nice, thanks!

Could you please give us a few comments about the code:
- expand, contract, shrink (etc) functions (ie LBLs in the code?)
- use of the registers (simplex coordinates, number of iterations)
There should also be a way for DM42 users to draw the simplex evolutions, or at least print the steps used.

Regards,
Thibault