V5.0.0: Expanded endpoint support and debug mode

[Deconstrained]

Summary

• New "debug mode" which sends all logging statements to stderr
• Keeping with the recommended construction of using one logger per module and naming accordingly, the name parameter is deprecated and has no effect as of this version. All loggers are now the same (i.e. logging.getLogger(__name__))
• Support for non-conformal endpoints in automatic entity wrapper handling; this fixes #96 and all similar issues one could easily run into
• Numerous deprecations (see CHANGELOG for details)
• End support for Python 3.5 / add support for Python 3.10

[Deconstrained]

The latest version of requests we could use without dropping support for Python v3.5 is 2.25.1; for v3.6 it's 2.27.1 (the version isn't available in those Pythons which is why the tests are failing).