Adding expTable minval and maxval reading to IO
Updating exponential table to better match mpact.  It also allows for values outside the range of the table to be calculated by the intrinsic EXP function, which mpact also allows for.
Adding a bunch of new cases and updating a couple old ones.  pincell_2g.dump is not working anymore, and causing a segfault in mpact for some reason, which still needs to be investigated.