refactor "inbreeding" Nushell modules
this MR
- moves the Nushell modules from
bins/inbreeding/
tobins/inbreeding/src/.nushell/
- creates a
NUSHELL
constant inconsts.nu
to allow the following more robust construct
use consts.nu
use $consts.NUSHELL ...
- updates the README
Edited by STEVAN Antoine