feat(client): add restapi error message to exceptions raised by client

[keithmanville]

addresses #763

[jkglasbrenner]

For context, I think my reasoning for omitting response.text from the raised error message was because the full details would be captured and returned if you turn on the logger and set the logging level to DEBUG. However, that requires you to do this in the first place, which isn't common in things like Jupyter notebooks, so it makes sense to also include it in the raised Exception. I like the solution of having it be a second argument to the Exception, since that returns a tuple of error messages.

In addition, you'll want to also make these changes in the test client, such as here:

dioptra/tests/unit/restapi/lib/client.py

Lines 378 to 379 in aab45ae

	raise StatusCodeError(f"Error code returned: {response.status_code}")