Fix a bug that CMakeLists.txt could not be found when the package was installed.

[somniumism]

Resolve #4

There is a bug that the package kaldialign-0.3 has not been installed since the PR #3 was reflected.

Adding CmakeLists.txt to MANIFEST.in seems to resolve this problem.

I have checked that the package is well built and installed in my local environment.

$ cd kaldialign
$ python setup.py bdist_wheel
...
$ pip install dist/kaldialign-0.4-cp39-cp39-macosx_12_0_x86_64.whl
...
Successfully installed kaldialign-0.4

Please double check if the package is well built and installed in your environment.

cc. @pzelasko @csukuangfj

[csukuangfj]

Sorry, I only tested

python3 setup.py install

and

pip install --verbose -U git+https://github.com/pzelasko/kaldialign.git

---

I just tested with your changes

python3 setup.py sdist
cd dist
pip install ./*

and it works.

Thanks for the fix.

[pzelasko]

Thanks!!