List Commands Library for 50g

[DavidM]

LSPLT/LRSPL

I'm moving forward now with the assumption that option 2a was the consensus for how the result should be presented for LSPLT and LRPSL.

Reals vs. Exact Integers in results

Also, having only received 1 confirming response to my question about always returning real results (as opposed to exact integers while in Exact mode), I'm moving forward with changing all affected commands to only return real results for indexes, counts, and char codes (there's quite a few that this applies to).

These changes will be in the next release, which I'm now thinking will be a "beta" as opposed to "release candidate" due to the nature and quantity of changes that the library is undergoing.