Deploying a model to a grid worker

[robert-wagner]

Part of Epic: #203

Blocked by #204, Models not being serializable in Pysyft.

In order to accomplish #203 we need to be able to easily deploy a model to a remote grid worker so that it can be queried.

From an api standpoint we want this to exist as either a function or method on torch models which are also passed a location and details surrounding how to serve them.
either

model.deploy(location, endpoint="name")

This will require a local hook on top of syft's hook.

or

deploy(model, location, endpoint="name")

or

location.deploy_model(model, endpoint="name")

After this call is made models should behave as if they were hosted as in #204