Add option to include or exclude files in the testing coverage

[abenjaminov]

This PR adds support for filtering files included or excluded from coverage during bun test. The feature allows users to specify coverageInclude and coverageExclude options in their configuration. Both glob patterns and regular expressions are supported.

For example:

[test]
coverageInclude = ["**/*.service.ts"]
coverageExclude = ["**/*.test.ts"]

How did you verify your code works?

• I wrote automated tests for the new functionality in patterns.zig and verified they pass.
• I ran local tests for the matchesGlob, isGlobPattern, matchesRegex, and matchesAnyPattern functions to confirm correctness.
• I validated the integration by ensuring the coverageInclude and coverageExclude settings work as intended with a sample test configuration.

For Zig changes:

• I checked the lifetime of memory allocated to verify it's (1) freed and (2) only freed when it should be.
• I included a test for the new code, ensuring coverage settings are respected.

[Jarred-Sumner]

Thank you for this PR.

• Instead of linking and including PCRE2, you can use bun.glob to match globs
• This will need tests, which you can see examples of in the test folder

[mladibejn]

kudos

[abenjaminov]

Thank you for this PR.

• Instead of linking and including PCRE2, you can use bun.glob to match globs
• This will need tests, which you can see examples of in the test folder

Thanks for the reply, i have incorperated bun.glob for this and wrote a few testing cases