Add task to retrieve a Firebolt engine's status

[desertaxle]

Since a Firebolt engine needs to be running in order run queries, we'll want the ability to check that an engine is running before running a query. This will also be useful when waiting for an engine that has been started to be available for use. Firebolt offers the ability to locate an engine via their SDK. The returned engine object can be used to get the status of the engine.

I'd expect the interface to look something like this:

def get_firebolt_engine(credentials: FireboltCredentials, engine_name: str) -> Engine:
    ....