This defines an AutolinkClient interface with a Get method used for
fetching the autolinks lists from the api. Then, the http client for
autolinks implements this interface with the AutolinkGetter struct.
This allows for dependency injection of the AutolinkGetter struct into the
listOptions, enabling mocking of the AutolinkGetter for testing. The
result of this is simpler tests that are easier to maintain, because the
interface for the table tests now allow for defining autolink structs as
the response instead of large mocked api calls.
This also allows for bespoke testing of the http file, which I'll follow
up with in the next commit.
a390ce4f10