Draft: bouture: Introduce slapos node bouture
This is a work in progress to do some prototypes, related to !827 and slapos!1918.
This provides a standalone bouture.pý that can be run to graft existing partitions from a node onto a new master. For convenience, a slapy is provided to automatically add slapos.core and its dependencies to the sys.path.
Use like: slapy bouture.py <OPTIONS>