Update build to exclude test data from source distributions

Author: mmcauliffe

MANIFEST.in

@@ -0,0 +1 @@
+global-exclude *.alimdl *.mdl *.wav *.flac *.mat tree *.txt *.ipynb .github*

kalpy/gmm/fine_tune.py

@@ -140,7 +140,7 @@ def build_extension(self, ext: CMakeExtension) -> None:
     long_description=long_description,
     long_description_content_type="text/markdown",
     ext_modules=[CMakeExtension("_kalpy")],
-    packages=find_packages(exclude=["scripts", "tests"]),
+    packages=find_packages(exclude=["scripts", "tests", ".github"]),
     cmdclass={"build_ext": CMakeBuild},
     zip_safe=False,
     extras_require={"test": ["pytest>=6.0"]},