[BCF] New BCF XML handler with better performances (#2355)

BREAKING CHANGE: incompatible methods and objects with previous version.

closes #2321

src/bcf/Makefile

@@ -0,0 +1,37 @@
+.PHONY: test
+test:
+	tox
+
+.PHONY: qa
+qa:
+	black .
+	isort .
+	pylint ./src --output-format=colorized
+
+.PHONY: typecheck
+typecheck:
+	mypy src/bcf
+
+.PHONY: license
+license:
+	copyright-header --license LGPL3 --copyright-holder "Andrea Ghensi <andrea.ghensi@gmail.com>" --copyright-year "2022" --copyright-software "IfcOpenShell" --copyright-software-description "BCF XML file handling" -a ./ -o ./
+
+.PHONY: coverage
+coverage:
+	coverage run --source bcf -m pytest tests
+	coverage html
+	xdg-open htmlcov/index.html
+
+.PHONY: clean
+clean:
+	rm -rf htmlcov
+
+# TODO: make this based on xsd file presence
+.PHONY: models
+models:
+	cd src && xsdata generate -p bcf.v2.model --unnest-classes --kw-only --slots -ds Google bcf/v2/xsd
+	cd src && xsdata generate -p bcf.v3.model --unnest-classes --kw-only --slots -ds Google bcf/v3/xsd
+
+# .PHONY
+# api:
+#     openapi-python-client generate --url https://api.swaggerhub.com/apis/buildingSMART/BCF/3.0