0.1.0 release

[andyk]

Significant changes in v0.1.0 include:

• Introduces a new architecture which has two main layers:
  • The lower layer Python Component System (PCS) which consists of Registrys (InMemoryRegistry and WebRegistry) and "Spec Objects" that include Repos (InMemoryRepo and GitHubRepo), Component, RunCommand, and Run/ComponentRun.
  • The higher layer AgentOS: which builds RL & agent related tools on top of the lower layer PCS abstractions.
• Reworks CLI to support new abstractions.
• Adds a Django web application that serves as a RESTful WebRegistry for hosting and sharing components.
• New example agents that demonstrate the integration of PCS and AgentOS with existing RL frameworks like Acme, Stable Baselines3, and RLlib.
• Support for Virtual Environment management via agentos.virtual_env.VirtualEnv class.
• GitHubRepo provides functionality for interacting with GitHub repos via the Dulwich library including fetching/caching/etc. git repos.
• Major rework of documentation.

This PR includes a few small tweaks to documentation to fix a warning and an error that I caught while following the release instructions and running

python setup.py sdist --formats=gztar,zip bdist_wheel
twine check dist/*

[nickjalbert]

200 files changed over 380 commits. We shoveled some code. :P

Added small note about the new example agents to the release notes; otherwise LGreatTM!