Sgraph

What's Changed
* Add catalog-info.yaml config file by skis84 in https://github.com/softagram/sgraph/pull/46
* deps: upgrade lxml to 4.9.4 by villelaitila in https://github.com/softagram/sgraph/pull/48
* API: a parse_xml_string method added, use also XML header to avoid encoding issues by villelaitila in https://github.com/softagram/sgraph/pull/47
* json export: hierarchical json format by villelaitila in https://github.com/softagram/sgraph/pull/49


**Full Changelog**: https://github.com/softagram/sgraph/compare/v3.0.1...v0.4.0

What's Changed
* Fix missing incoming dependencies in filter_model by skis84 in https://github.com/softagram/sgraph/pull/32
* Minor improvements to graphml handling and documentation by villelaitila in https://github.com/softagram/sgraph/pull/31
* Add new function for creating associations by skis84 in https://github.com/softagram/sgraph/pull/34


**Full Changelog**: https://github.com/softagram/sgraph/compare/0.1.2...0.2.0

- Fix vulnerability through upgrade of lxml
- Adding load_attributes func to ModelLoader
- Fix filter_model to include descendants of the elements
- Fix utf-8 surrogates handling