Scaffolding for V1 integration tests

[keithmanville]

Perform necessary steps in order to start writing integration tests for V1 of the REST API in a way that does not disrupt other existing tests and does not hinder other development.

Definition of Done

• V1 integration tests can be enabled with a flag passed to pytest
• V1 integration tests are disabled by default
• A new namespace is created for the implementation of V1 tests

[jkglasbrenner]

This example is how we can mark test functions as something to only run when a command-line parameter is provided.

https://docs.pytest.org/en/latest/example/simple.html#control-skipping-of-tests-according-to-command-line-option

We basically can invert this, so that the tests only run when the option flag is provided (the example is the reverse).

[keithmanville]

PR #430