Major Changes
* Adds a base class for `Viewer` which allows fully customised rendering. Moves the default viewer to `opencv.py`.
* Adds support for OpenDRIVE road networks via [`pyxodr`](https://github.com/driskai/pyxodr).
* Adds `ScenarioActions` to allow generic actions to be creataed and executed during the scenario.
* Refactors the `CatalogEntry` class to allow loading of generic xml elements. This allows custom entity types to be implemented with catalog information stored via OpenSCENARIO catalogs.
* Introduces subclasses of `Entity` to support loading `Vehicle` and `Pedestrian` information.
Minor changes
* Makes `Trajectory` objects immutable.
* Moves viewer arguments to a dictionary argument in `ScenarioManager`.
* Adds support for mixed catalog sets by storing catalog locations in the scenario.
What's Changed
* add compatibilty to xosc 1.1 (and 1.0) by LNS98 in https://github.com/driskai/scenario_gym/pull/2
* Testing by hamishs in https://github.com/driskai/scenario_gym/pull/3
* add contribution guidelines by hamishs in https://github.com/driskai/scenario_gym/pull/4
* Add metric for first two rules of RSS by IB2953 in https://github.com/driskai/scenario_gym/pull/5
* Rendering by hamishs in https://github.com/driskai/scenario_gym/pull/6
* Xodr by hamishs in https://github.com/driskai/scenario_gym/pull/7
* Rendering2 by hamishs in https://github.com/driskai/scenario_gym/pull/8
* Ensure submodules are cloned by hamishs in https://github.com/driskai/scenario_gym/pull/9
* Ensure submodules are cloned (9) by hamishs in https://github.com/driskai/scenario_gym/pull/10
* OpenDRIVE support by HughBlayney in https://github.com/driskai/scenario_gym/pull/11
* Immutable trajectory data by LNS98 in https://github.com/driskai/scenario_gym/pull/13
* Catalogs actions by hamishs in https://github.com/driskai/scenario_gym/pull/12
* fix viewer kwargs in manager by hamishs in https://github.com/driskai/scenario_gym/pull/14
* support File objects by hamishs in https://github.com/driskai/scenario_gym/pull/16
* Mixed catalogs by hamishs in https://github.com/driskai/scenario_gym/pull/18
* scenario_gym v0.2.0 by hamishs in https://github.com/driskai/scenario_gym/pull/19
New Contributors
* LNS98 made their first contribution in https://github.com/driskai/scenario_gym/pull/2
* IB2953 made their first contribution in https://github.com/driskai/scenario_gym/pull/5
* HughBlayney made their first contribution in https://github.com/driskai/scenario_gym/pull/11
**Full Changelog**: https://github.com/driskai/scenario_gym/compare/v0.1.0...v0.2.0