include an optional gateway service

[coryschwartz]

Setup a load balancer or ingress to function as a public gateway. This would work similarly to ipfs.io, the cloudflare ipfs gateay or any of the other gateway implementations, it would serve HTTP traffic.

While this is not stricltly required, as the data stored here would be accessible through any public gateway, it's a common use case, and would likely be beneficial.

Ideally, the gateway would be aware of where data is pinned and would direct traffic to the correct nodes, but simply balancing to port 8080 would work for an MVP.

[coryschwartz]

Closing, since I opened a second issue with the same purpose. #72