Aalto-Electric-Drives/motulator: v0.5.0

What's Changed

This release contains several additions and improvements. This is the first release of motulator, in which grid converter models and controls are included (merged from gritulator). The most significant changes are:

• Merge and rewrite grid converter system models, controls, and utilities from gritulator (e.g., #136 and many other PRs since that)
• Major update in the documentation (e.g., #148, #152, #154, #155, #165, #167)
• Major refactoring the system models to a more modular form (#128)
• Add torque-control mode (#133)
• Flux-vector control for induction machines (#137)

Full Changelog: https://github.com/Aalto-Electric-Drives/motulator/compare/v0.3.0...v0.5.0