Moves mip.py to mip/__init__.py, so that the optional (added in this
commit) mip/__main__.py can exist to support:
`micropython -m mip install [--target,--index,--no-mpy] package@version`
"install" works by forwarding the arguments directly to mip.install.
Updates mip to v0.2.0 because of the change in directory structure.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Jim Mussared