openwrt: new dependency issue

[wfleurant]

re: 799e7ea

when running python3 -m mm_cli
we do not include pkg_resources in OpenWrt (setuptools ?)

  File "/usr/lib/python3.8/site-packages/mm_cli/__init__.py", line 1, in <module>
    from pkg_resources import get_distribution

where __init__.py is

from pkg_resources import get_distribution
__version__ = get_distribution('mm-cli').version

[wfleurant]

when i add python3-setuptools MassMesh/meta-imagebuilder@6a5b653

this error is on rpi3

root@OpenWrt:/tmp# opkg list | grep mm-cl
python3-mm-cli-src - 0.0.5-5
root@OpenWrt:/tmp# mm
Traceback (most recent call last):
  File "/usr/lib/python3.8/runpy.py", line 185, in _run_module_as_main
  File "/usr/lib/python3.8/runpy.py", line 144, in _get_module_details
  File "/usr/lib/python3.8/runpy.py", line 111, in _get_module_details
  File "/usr/lib/python3.8/site-packages/mm_cli/__init__.py", line 3, in <module>
    __version__ = get_distribution('mm-cli').version
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 481, in get_distribution
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 357, in get_provider
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 900, in require
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 786, in resolve
pkg_resources.DistributionNotFound: The 'mm-cli' distribution was not found and is required by the application