FEAT: Piccolo Proof of Concept

[DinoAGW]

• First complete try to use Picolo as a config objectl and
• fixed faulty package-info stuff.

[codecov]

Codecov Report

Merging #625 into integration will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             integration     #625   +/-   ##
==============================================
  Coverage          45.63%   45.63%           
  Complexity          1046     1046           
==============================================
  Files                 57       57           
  Lines               9149     9149           
  Branches            1687     1687           
==============================================
  Hits                4175     4175           
  Misses              4424     4424           
  Partials             550      550           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f410a7f...2fd286e. Read the comment docs.

[carlwilson]

@david-russo and @tledoux I've asked you both to take a look at this as I know you'd both expressed opinions. I'm going to write some tests for illegal parameter combos and the like and add param descriptions. It also seems sensible to factor out the description strings as resources. That aside, it all looks good.

[david-russo]

Assuming all the TBD are addressed, and it supports at least what the current one does, the use of picocli already looks like a vast improvement to me. I don't see any problems with the logic either, it only seems to need some comment clean up and option descriptions.

Passing the old -P or -p options will now probably cause the CLI to exit with an 'unknown option' message of some kind (I haven't actually run the code). Those options have had no effect for a while though, so this is probably as good a time as any to alert people to that.