jp (input): log improvments + empty filter: - more colors in debug logs - read values are printed if verbosity is >= 2 - stdout and stderr of each command can be written in files using --log and --log-err - --empty option allow to ignore arguments if its value is empty, or skip the whole row

Use this module to temporary store files that need to be integrated to other
projects such as Wokkel.

For example, the changeset that introduced this folder adds RSM (XEP-0059)
support to Wokkel. The files in sat.tmp.wokkel are imported over the initial
wokkel files from sat.plugins.__init__.py