Add XML-based support for .drawio file type #842

Job	Run time
checkstyle	3m 29s
copyright	3m 14s
build	4m 57s
shellcheck	3m 7s
spotbugs	5m 34s
vscode-ext	3m 57s
cli/windows-amd64	5m 28s
javadoc	4m 8s
cli/darwin-amd64	6m 4s
tests/cli-functional-linux	6m 48s
tests/linker-linux	4m 45s
cli/linux-amd64	4m 50s
tests/cli-linux	5m 11s
tests/linker-windows	5m 4s
tests/archetype-windows	5m 40s
tests/cli-functional-windows	7m 22s
tests/cli-windows	6m 2s
tests/archetype-linux	5m 1s
tests/others-linux	6m 4s
tests/others-windows	7m 41s
cli/binaries	9s
tests/results	4s
gate	3s
	1h 44m 42s

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