Make any changes in the Functor Key capabilities necessary to support getXXXKey, getXXXErrKey, and getXXXFlagKey for the 3 different types of slots.

Change these routines in Source.h.m4 to return FunctorKeys for both version 0 and version 1 tables. Then fixup any compilation breaks on the C++ size which this causes. Remove the version 1 specific accessors.

I am assigning this to Jim to confirm that the first part is done, then he can assign the remainder to Perry either by reassigning, or as a subtask.