This commit adds a host package for the Python 'fs' module, needed as
a dependency of pyfatfs, itself needed by Snagboot.
Homepage: https://pypi.org/project/fs/
In addition, a very simple test case is adding to check that
host-python-fs is minimally working.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
