Prosper-shared

Commits
- df9d6c9: Add badges to readme (Graham Tibbitts)
- fed9db4: Add very simple conversion between schema and argparse (Graham Tibbitts)

Commits
- 9cf4b0f: Don't convert argparse arguments to string (Graham Tibbitts)

Commits
- 921307d: Rename config and inputs decorators to config_schema and input_schema (Graham Tibbitts)

Commits
- 5ac8d61: Make SchemaType recursive (Graham Tibbitts)

Commits
- 95abc7f: Ignore certain mutations; add omni_config to readme (Graham Tibbitts)
- b834f21: Move omni_config exports to root namespace; support TOML and YAML as extras (Graham Tibbitts)

Commits
- 0500dfb: Move 'dev' dependencies to extras section (Graham Tibbitts)