Add methods supporting teamID to usergroups

[marthaklambert]

• If you're using enterprise grid, sending a teamID along with a usergroup is required for all API methods
• Previously, very few of the usergroup methods in this client supported teamID
• I've added separate methods, to avoid breaking changes, which take a teamID

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Run make pr-prep from the root of the repository to run formatting, linting and tests.

Should this be an issue instead

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