Tensortrade-ng

* Set minimum python version to 3.10 to allow project to be runned on Google Colab.
* Added python version 3.10 and 3.11 to test matrix.

**Full Changelog**: https://github.com/erhardtconsulting/tensortrade-ng/compare/v2.0.0.alpha1...v2.0.0.alpha2

* Made tests working again.
* Migrated all components to `SchemeMixing`, reducing arguments needed for methods. Every component can now access `TradingEnv` directly.
* The state (the actual data) is now handled by the environment itself. It can be accessed over `FeedController`.
* Updated some of the tutorials.

**Full Changelog**: https://github.com/erhardtconsulting/tensortrade-ng/compare/v2.0.0.alpha0...v2.0.0.alpha1

First alpha release after fork:
- Made tests working again
- Cleaned up code and documentation

**Full Changelog**: https://github.com/erhardtconsulting/tensortrade-ng/commits/v2.0.0.alpha0