Harmonize CLI importer usage output

Suppress all 'equals' operators.
Tweak tab spacing between CLI arguments and text.
Log errors count for CLI import
Use command arguments to configure CLI importer

Make sure that the same arguments being passed to the
command line importer get set on the ImportConfig object
being used by the QA error reporter.
Update source header licence dates

Applied to classes within package 'ome.formats.importer.cli' only.
Fix log message word spacing
CLI import monitor: replace stdout with debug log
Revert CLI import monitor back to stdout

Using a logger to report the end of import results causes
side effects on tools which rely on this output, such as
CI jobs - eg. 'pid=$(bin/omero import filepath)'.
Merge pull request #1339 from zeb/rebased/dev_4_4/cli-importer-qa-report-dev-4-4

Rebased/dev 4 4/cli importer qa report dev 4 4