[BUGS#1251][6.0][backport] fix: FindMatches#search ignore penalty when segmented matches

[miurahr]

Backport PR #963

Pull request type

• Bug fix -> [bug]

Which ticket is resolved?

• https://sourceforge.net/p/omegat/bugs/1251/

What does this PR change?

• Backport test case from PR [BUGS#1251] FindMatches always search separate segment match without penalty: add regression test, fix it, make configurable, show where comes from in FuzzyMatch pane, and refactor #963
• Backport core fix from PR [BUGS#1251] FindMatches always search separate segment match without penalty: add regression test, fix it, make configurable, show where comes from in FuzzyMatch pane, and refactor #963
• Extend NearString.Scores to hold penalty
• Update FindMatches.search to handle segmented search with penalty

Other information

[miurahr]

@t-cordonnier could you check the backport is as same as #1223 that your fix proposal merged into master.

[miurahr]

This also backports the fix PR #1231 to respect foreign matches with segmented search.

[t-cordonnier]

Since this also includes part of non-yet validated PR 1220 I think we should wait for definitive version related file name before approving this PR. Or we remove this part, validate PR 1251 and backport action about file name later.

[miurahr]

Since this also includes part of non-yet validated PR 1220 I think we should wait for definitive version related file name before approving this PR. Or we remove this part, validate PR 1251 and backport action about file name later.

Can you approve now? Because PR #1220 has been merged.