Port to non-MacOS platforms (#1026)

* Port to non-MacOS platforms

* Keep NFD normalization on macOS

* Update locale_util.py

Fix lint error from ruff (runs in CI)

* Update query.py

click.Option first arg needs to be a list (different than click.option)

* Dynamically normalize Unicode paths in test

* Fix missing import

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Co-authored-by: Rhet Turnbull <rturnbull@gmail.com>

tests/test_exiftool.py

@@ -538,13 +538,13 @@ def test_exiftool_terminate():
 
     ps = subprocess.run(["ps"], capture_output=True)
     stdout = ps.stdout.decode("utf-8")
-    assert "exiftool -stay_open" in stdout
+    assert "exiftool" in stdout
 
     osxphotos.exiftool.terminate_exiftool()
 
     ps = subprocess.run(["ps"], capture_output=True)
     stdout = ps.stdout.decode("utf-8")
-    assert "exiftool -stay_open" not in stdout
+    assert "exiftool" not in stdout
 
     # verify we can create a new instance after termination
     exif2 = osxphotos.exiftool.ExifTool(TEST_FILE_ONE_KEYWORD)