Update for ALPHA release

[guzman-raphael]

This PR:

• Renames project to pharus based on Slack discussions.
• Adds docker-compose templates for build, test, deploy.
• Adds a changelog to capture release notes.
• Adds continuous delivery to GH actions workflow. Logic is that on pushing tags matching *.*.*, release will be automatically triggered. Release means:
  • Manual: version.py properly updated. Should be updated via PR's and will be consumed in automating distribution artifacts.
  • Manual: CHANGELOG.md properly updated. Should be update via PR's and will be consumed in automating release notes.
  • GH Actions: Make a GH release
  • GH Actions: Generate pip artifacts (Wheel, SDist) and publish to PyPi
  • GH Actions: Generate docker images and publish to DockerHub
  • GH Actions: Upload all generated artifacts to GH release
• Adds configuration to port with PHARUS_PORT (defaults to 5000)
• Adds path prefix configuration with PHARUS_PREFIX (defaults to '')
• Adds proper production-grade serve using gunicorn (default). Can serve for development using pharus (Flask builtin).
• Removes necessity to configure HOST_UID. This is now determined in docker-compose commands.
• Renames namespace modules in pip package to be more consistent with noun/entity common pattern.
• Update docs and tests

@mahos @Synicix
Regarding adjustments to development going forward, the following changes will be necessary with this:

• Rename your fork to pharus
• Update your git remote -v references to the new repos (though the old aliases will still work for some time)
• Review the new compose files. In particular, familiarize yourself with docker-compose-test.yaml.

[Synicix]

Changes look good to me