Add fnmatch pattern support to include_files()

[hyeeyoungkim]

Summary

• Rewrite include_files() to support fnmatch glob patterns (*, ?, [seq]) in -excludedFileNames, fixing two bugs in the process
• Update -ef help text to document pattern support

Problem

include_files() has two bugs and a missing feature:

1. Substring matching bug (line 1603): if file_name in list_to_exclude checks for substring membership in the raw comma-separated string, not in the split list. For example, filename "dat" incorrectly matches exclusion list "data,photo.jpg".

2. Dead code (line 1600): exclude_files = list_to_exclude.split(",") is created but never referenced — the split list is discarded and the raw string is used instead.

3. No pattern support: The function only does (broken) exact matching. Callers who need glob-style exclusion (e.g., ._* for macOS resource forks, ~$* for Office temp files) must pre-resolve patterns to exact filenames before calling yesc.

Change

Rewrote include_files() from 13 lines to 5:

def include_files(file_name, list_to_exclude):
    if list_to_exclude:
        import fnmatch
        for pattern in list_to_exclude.split(","):
            if fnmatch.fnmatch(file_name, pattern.strip()):
                return False
    return True

• Iterates the split list instead of checking substring membership (fixes bug 1)
• Uses fnmatch.fnmatch() for each pattern (adds wildcard support; exact names still match since fnmatch("Thumbs.db", "Thumbs.db") is True)
• Strips whitespace from each pattern (handles "._*, ~$*")
• Removes dead code and debug print() statements

Updated help text for -excludedFileNames to mention pattern support.

Impact

• CLI with exact names: Now works correctly (was broken by substring bug)
• CLI with patterns: New capability — yesc.py -ef "._*,~$*,Thumbs.db" works
• Library import: Same signature, backwards compatible
• PyInstaller: No change