Speed up

[jecisc]

This change is speeding up the project by caching the rules and not recreate all the regex all the time.

I have a snippet plurializing a big list of words, and it becomes 5 times faster with this change.

I think we can do even better by maybe not using so much regexes, but it's a first step with an already nice impact

[coveralls]

Pull Request Test Coverage Report for Build 22678823835

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 174 of 180 (96.67%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.6%) to 99.359%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/SingularizePluralize/SingularizePluralizeRule.class.st	51	57	89.47%

Totals
Change from base Build 22676007114:	-0.6%
Covered Lines:	930
Relevant Lines:	936

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💛 - Coveralls