Cst-python

What's Changed
* Gymnasium integration
* Memory storage, for memory synchronization between CST-Python instances and with CST-Java

CST-Python base code ready!

Fixes
- Typechecking fixes

Documentation
- Core code documentation
- BibTeX generation
- Repository DOI
- Link to documentation in README

Code Infrastructure
- Documentation CI
- PyPI Publish CI
- Typechecking

Examples
New examples:
- Introduction to CST-Python
- Implementig a Architecture
- Publisher-Subscriber
- Activation and Monitoring

Fixes
Core
- Typos
- Memory atribute types, to match CST-Java types
- Codelet thread name
- Memory object equals implementation

Code Infrastructure
- Core modules tests
- Tests CI