Add scan command to run scanners

[turbaszek]

Users can run scanners via scan command:

➜ kibble scan --help
Usage: kibble scan [OPTIONS]

Options:
  -t, --type TEXT     Specific type of scanner to run (default is run all
                      scanners)

  -e, --exclude TEXT  Specific type of scanner(s) to exclude
  -o, --org TEXT      The organisation to gather stats for. If left out, all
                      organisations will be scanned.

  -a, --age TEXT      Minimum age in hours before performing a new scan on an
                      already processed source. --age 12 will not process any
                      source that was processed less than 12 hours ago, but
                      will process new sources.

  -s, --source TEXT   Specific source (wildcard) to run scans on.
  -v, --view TEXT     Specific source view to scan (default is scan all
                      sources)

  --help              Show this message and exit.

➜ docker-compose -f docker-compose-dev.yaml run setup kibble scan
Creating kibble_setup_run ... done
Kibble Scanner starting
Using direct ElasticSearch broker model
Connecting to ElasticSearch database at http://elasticsearch:9200
Connected!
This is a type-less DB, expanding database names instead.
We're using ES >= 7.x, NO DOC_TYPE!
All done scanning for now, found 0 organisations and 0 sources to process.

[kaxil]

Is this here to delay import or causes an import cycle?

[turbaszek]

To delay import, the __init__ in scanners has top level logic which gets executed when importing the module. This is something that can be addressed later

[kaxil]

+1