Refactor default parser test

[sigee]

• Satisfy the TODO comment
• Fill out the missing cases
  • Long option quote handling DEFAULT behavior
  • Short option quote handling DEFAULT behavior
  • Short option concatenated quote handling WITH strip
  • Short option concatenated quote handling WITHOUT strip

[garydgregory]

This PR has an empty description. Please tell us what this fixes.

[sigee]

The main purpose was to satisfy the TODO comment in the code. "TODO Needs a rework using JUnit parameterized tests."
While moving the test cases into the argument provider, I also filled out some missing cases, because in the provider it is more conspicuous which cases are covered and which are not.
Unfortunatelly the parent abstract class also requires a refactor, to eliminate the two disabled inherrited test cases, because their behavior differs from the other parsers, but could be covered by the parameterized test.

[garydgregory]

@sigee
Thank you for your PR.
Please run mvn before you push and fix any build failures.

[sigee]

@garydgregory
I usually do run verification at least before the pull request, but this time I missed it for some reason I couldn't remember.
Anyway, I fixed the checkstyle issues.

[garydgregory]

@sigee
Merged; TY!