Add support to release linux aarch64 wheels

[odidev]

Problem

On aarch64, pip install bx-python builds the wheels from source code and then installs it. It requires the user to have a development environment installed on their system. Also, it takes more time to build the wheels than downloading and extracting the wheels from PyPI.

Resolution

On aarch64, pip install bx-python should download the wheels from PyPI.

@nsoranzo, Please let me know your interest in releasing aarch64 wheels. I can help with this.

[nsoranzo]

Wheels for manylinux aarch64 will be available from the next release.