- Renamed ApiUrls.TeamsUpdateOrDelete method name to just "Team".  This was done because the same Uri is also used to get a team, not just updating and deleting.
- Fixed references pointing to method name that was changed.
- Added Get method to the Octokit/Clients/ITeamsClient interface.
- Implemented the aforementioned Get method in the Octokit/Clients/TeamsClient class.
- Added test in Octokit.Tests/Clients/TeamsClientTests for the aforementioned Get method.