Testing: dump_databases flag

[tokejepsen]

Changelog Description

This introduces a dump_databases flag which makes it convenient to output the resulting database of a successful test run. The flag supports two formats; bson and json.

Due to outputting to the test data folder, when dumping the databases, the test data folder will persist.

Split from #5644

Testing notes:

openpype_console runtests C:\Users\tokejepsen\OpenPype\tests\integration\hosts\maya\test_publish_in_maya.py --dump_databases json --mongo_url "mongodb://localhost:2707/"

NOTE: I have not tested all integrations cause I dont have them locally.

openpype_console runtests --dump_databases json --mongo_url "mongodb://localhost:2707/"

[tokejepsen]

Putting this on hold while I work on the json export, cause this flag should determine the output format.

[tokejepsen]

Ready for review again.