Is your feature request related to a problem? Please describe.
There is no way to bag sort from a command. To type manually or use within a macro.

Describe the solution you'd like
Add a command like /bagnon bag sort that will trigger bag sorting (the small icon on the bags).

Describe alternatives you've considered
BagSort addon is something that existed for most of my WoW "career" but seems to have been abandoned.

Additional context
Its fairly simple.

Seems this function is here: https://github.com/Jaliborc/Wildpants/blob/master/api/sorting.lua#L32 and called from https://github.com/Jaliborc/Wildpants/blob/master/classes/sortButton.lua#L30