Package upstream processing script

Discuss how to package the main user entry point script zarp.

See #130 (closed) for some starting points for this

added Discuss label

mentioned in issue #134 (closed)

changed milestone to %upstream

assigned to @katsanto

mentioned in issue #118 (closed)

mentioned in issue #137 (closed)

mentioned in issue #130 (closed)

added Doing label

#36 , #122 (closed) can be implemented here.

added upstream label

closed