Now commands 'pype project artifact' and 'pype pipeline run_pipe' now
accepts --format to specify in which format to serialize the resulting
container, and have --tar and --yaml shortcuts. Moreover, these commands
and 'pipe pipeline run_analysis' can automatically figure out the format
of containers so the user won't have to specify them most of the time.
Now the pype command has a `--verbose` argument that to enable debug
logging in the pypelien code.
Adapted the codebase to use this new logging format but replacing
`logging` with `revng.pypeline.utils.logger`, this is done in
preparation of debug-log.
Now pype has an `autocomplete` command usable to enable autocompletion
and revng2 now is based on `pype`, modifying its defalults and
injecting new commands.
When click calls the command handler functions, dashes are converted to
underscores to work with the variable name limitations of python. When
accessing kwargs, convert the argument name to the underscored version.
Giacomo Vercesi