PyPi package for Essentia

[dbogdanov]

This is a suggestion to add the missing link to PyPi for Essentia:

• Main package: https://pypi.org/project/essentia/
• Including additional TensorFlow wrapper algorithms for inference with pre-trained models): https://pypi.org/project/essentia-tensorflow/

Both packages are Manylinux wheels, only available for Linux x86_64.

[faroit]

@dbogdanov great. thanks. Its on my new year resolution list to finally update this repo ;-)