Basic ReqIF-to-JSON conversion example, update ReqIF schema validation

What's Changed

• Bump version to 0.0.39 by @stanislaw in #139
• Code climate: reqif_bundle: add a missing type hint by @stanislaw in #145
• CI: add Python 3.11 by @stanislaw in #146
• relation_group_type_parser: fix a copy-and-paste error by @stanislaw in #147
• README: fix the ReqIFz example by @stanislaw in #149
• tests/integration/examples: a basic example of ReqIF -> JSON by @stanislaw in #151
• tests/integration: demonstrate --use-reqif-schema against random ChatGPT ReqIF by @stanislaw in #153
• examples/04_convert_reqif_to_json: --stdout parameter by @stanislaw in #154
• README: How-to examples section by @stanislaw in #155
• examples: JSON example: print nested sections and requirements by @stanislaw in #156
• examples: JSON example: support specifications without a name by @stanislaw in #157
• examples: JSON example: add field types by @stanislaw in #158
• CI: update Python action version by @stanislaw in #162
• tests/integration: add Doors sample from eclipse-capella/capella-requirements-vp by @stanislaw in #161
• ReqIF-to-JSON example: simplify iteration/conversion procedure by @stanislaw in #163
• reqif_bundle: add iterate_specification_hierarchy_for_conversion() helper by @stanislaw in #164
• Update ReqIF schemas to the recently updated xmlschema by @stanislaw in #165
• Code climate: set mypy to --strict mode, ignore appeared checks for now by @stanislaw in #166

Full Changelog: 0.0.39...0.0.42

ReqIFz support, validation of ReqIF files against ReqIF XSD schema using xmlschema

What's Changed

• DOORS: example where many string values have to be escaped by @stanislaw in #128
• Bump version to 0.0.36 by @stanislaw in #129
• tasks and tests/integration: run tests with reqif as a Python module by @stanislaw in #131
• ReqIFz format support by @stanislaw in #132
• tests/integration/reqifz: tests with ReqIF and attachments by @stanislaw in #133
• Bump version to 0.0.37 by @stanislaw in #134
• validate, reqif/reqif_schema: Implement the validation of ReqIF files against the official XSD schema by @stanislaw in #137
• validate, reqif/reqif_schema: integrate better with other validations by @stanislaw in #138

Full Changelog: 0.0.35...0.0.39

Support of Relation Groups

What's Changed

• Implement TC1300: RELATION-GROUP-TYPE by @stanislaw in #125
• Fixed enumeration value map by @stanislaw in #126
• Bump version to 0.0.35 by @stanislaw in #127

Full Changelog: 0.0.34...0.0.35

0.0.34

What's Changed

• tests/integration: add huge ReqIF from eclipse.org for inspecting performance by @stanislaw in #103
• README: document the anonymization and alphabetic printing of attributes by @stanislaw in #104
• tests/integration: implement ci.eclipse.org/TC1000 by @stanislaw in #105
• tests/integration: implement ci.eclipse.org/TC1400 by @stanislaw in #106
• Bump version to 0.0.28 by @stanislaw in #108
• helpers: indent/unindent XHTML strings by @stanislaw in #109
• Bump version to 0.0.29 by @stanislaw in #110
• helpers/lxml: simplify is_self_closed_tag() by @stanislaw in #111
• helpers: lxml: lxml_convert_to/from_reqif_ns_xhtml_string() helper by @stanislaw in #112
• spec_object_parser: a slot for XHTML attribute stripped from namespace info by @stanislaw in #113
• helpers/lxml: lxml_ prefix for all remaining methods by @stanislaw in #114
• helpers/lxml: improve lxml_dump_node() by @stanislaw in #115
• helpers/lxml: make lxml_stringify_node a standalone method by @stanislaw in #116
• helpers/lxml: fix the edge case with self-closing OBJECT tags by @stanislaw in #118
• Doors: a yet another example from a user: XHTML tags with their own namespaces by @stanislaw in #119
• tests/integration: Doors example from a user: escaping quotes by @stanislaw in #120
• Bump version to 0.0.34 by @stanislaw in #121

Full Changelog: 0.0.27...0.0.34

Improved anonymise command, fixed edge cases when parsing ATTRIBUTE-VALUE-BOOLEAN and -XHTML attributes

What's Changed

• reqif_bundle: get_spec_object_type_by_ref helper method by @stanislaw in #90
• Bump version to 0.0.25 by @stanislaw in #91
• cli: rewrite the anonymise command using pure lxml enhancement by @stanislaw in #93
• Bump version to 0.0.26 by @stanislaw in #94
• spec_object_parser: unparse ATTRIBUTE-VALUE-BOOLEAN by @stanislaw in #96
• cli: anonymize: edge case for XHTML by @stanislaw in #97
• parsers: spec object, specification, spec object type: edge case with XHTML fields by @stanislaw in #98
• Specification type: not closing tag by default when created manually by @stanislaw in #99
• All APIs: make all optional methods have default arguments by @stanislaw in #100
• Start adding fixtures from ci.eclipse.org by @stanislaw in #101
• tests/integration: add remaining major tests from ci.eclipse.org by @stanislaw in #102

Full Changelog: 0.0.24...0.0.27

Minor tweaks for parsing/unparsing ReqIF files produced by Polarion

What's Changed

• pyproject: remove Poetry by @stanislaw in #84
• Code climate: tasks: add ruff linter by @stanislaw in #83
• tasks: update release task by @stanislaw in #85
• tests/integration: add an example produced from Polarion by @stanislaw in #86
• Bump version to 0.0.24 by @stanislaw in #89

Full Changelog: 0.0.23...0.0.24

XHTML attributes: improve handling of multiline fields

What's Changed

• XHTML attributes: improve handling of multiline fields by @stanislaw in #81
• Bump version to 0.0.23 by @stanislaw in #82

Full Changelog: 0.0.22...0.0.23

Support of DATE type attributes

Merge pull request #80 from strictdoc-project/stanislaw/version

Bump version to 0.0.22