Add the public order book extension to the Client #425

Job	Run time
Test with nox (ubuntu-20.04, 3.11, pytest_min)	1m 1s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 41s
Build distribution packages	21s
Test documentation website generation	41s
Cross-arch tests with nox	0s
Cross-arch tests with nox	0s
Test package installation in different architectures	3m 10s
Test with nox	2s
Publish documentation website to GitHub pages	0s
Create GitHub release	0s
Publish packages to PyPI	0s
	6m 56s

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