ENH: implement a basic build command.
ENH: implement a basic build command.

It does not do much for now, only produce an installed package
description for python modules/packages + package data.

cournape/Bento,cournape/Bento,cournape/Bento,abadger/Bento,cournape/Bento,abadger/Bento,abadger/Bento,abadger/Bento