This pull request introduces a new glob pattern matching utility to the
`gfile` package, adding support for advanced glob patterns including the
"**" (globstar) operator, which matches across directory boundaries,
similar to bash and gitignore. It also includes a comprehensive set of
unit tests to verify the correctness and cross-platform compatibility of
the new functionality.
**Glob pattern matching feature:**
* Added `MatchGlob` function to `gfile`, which extends `filepath.Match`
with support for the "**" (globstar) pattern, enabling recursive
directory matching and more flexible file pattern matching.
* Implemented internal helpers (`matchGlobstar` and `doMatchGlobstar`)
to handle normalization of path separators and recursive matching logic
for patterns containing "**".
**Testing and validation:**
* Added `gfile_z_unit_match_test.go` with extensive unit tests covering
basic glob patterns, globstar usage, prefix/suffix combinations,
multiple globstars, edge cases, and Windows path compatibility to ensure
robust and cross-platform behavior.
---------
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: houseme <housemecn@gmail.com>
