Roboswag

Major improvements for our internal test framework and utilities. We also added support for openAPI v3 (in json and yaml format).

For more details see the [full release notes](https://github.com/MarketSquare/roboswag/blob/main/docs/releasenotes/0.4.0.rst).

Fixes for missing optional properties in OpenAPi specification file.

For more details see the [full release notes](https://github.com/MarketSquare/roboswag/blob/main/docs/releasenotes/0.3.1.rst).

Several fixes and changes to improve Roboswag compatiblity with OpenAPi v2. Also our project went through transformation - we added automated workflows, started working on tests and initialized external documentation.

For more details see the [full release notes](https://github.com/MarketSquare/roboswag/blob/main/docs/releasenotes/0.3.0.rst).