feat: introduce Lucene-Hunspell spellchecker module

[miurahr]

Pull request type

• Feature enhancement -> [enhancement]

Which ticket is resolved?

What does this PR change?

• Add [email protected] as dependency, even a dependency LT depends on [email protected]
• dictionary should be <lang>/index.aff and <lang>/index.dic which will be come from https://github.com/wooorm/dictionaries

Other information

TODO:

• support https://github.com/LibreOffice/dictionaries

[miurahr]

There is a problem for dependency version conflict. OmegaT 6.1 have a mechanism to encapsulate modules/plugins with individual class loader and avoid referencing from other module/core to look unwanted version of dependency.
It is mandatory to merge here lucene-hunspell module to OmegaT, OmegaT core should separate LT and Lucene to individual modules. It is because the Lucene-Hunspell module can see core dependencies that is Lucene 5.5.5 will cause an error.

[miurahr]

When this PR is merged into LT project, we can use it.
languagetool-org/languagetool#10810

[miurahr]

LanguageTools project plan to move to use Lucene 8 in LT 6.6 development.

languagetool-org/languagetool#10810 (comment)