Code refactoring TODOs before beta release

[albincorreya]

The following 'code-refactoring-todos' were identified along with @furkanyesiler

The changes are made in the packaging dev branch of the repo.

Preprocess -

Extractors

• Proper docstrings for all the functions
• Logging error audio files in the batch extraction process
• Specify a list of features as cmd args.
• Change exception in compute features from list file
• Unify string formatting using {}.format
• Add cmd-line option for the feature extraction of other datasets (eg. from a given path)
• Refactor cmd-line args for running non-parallel jobs (eg. cluster, cpu thing).
• Make feature extractor unison for any file paths.

Features

• Wrapper to call feature methods on a specific python version. If not available throw an exception.
• Clean the file

Local config

• Single local config file for the whole repo.

Requirements

• Separate requirements.txt file for various python versions

README

• Proper description and toy examples.

Benchmarking and CoverStats (@ctralie can you give me a hand on this part? )

• Adhere code to pep-8 standards
• Make getEvalStatistics clean
• Follow conventions for writing docstrings
• Standardize argparse of cover similarity algorithms
• Clean all functions in statistics/ with pep8, etc
• Make a single command line interface to call all benchmarking algorithms with a consistent set of parameters

Main repo and packaging

• Add CI tools and unit tests.
• Package acoss as a python library and build pip wheels
• Logo for the repo and dataset
• Scripts for building automated docs.
• Proper README with setup instructions and example files
• Check file storage formats for distributing datasets.