* Remove threading from uploader.
* Create rpc_client class in client to connect to server (using grpc) and verify that the upload_squeak method in rpc_client gets calleed
* Add main class with entry point in squeaknod/server
* Added sqkserver command and service to docker-compose for test
* Add server handler class, and still trying to load rpc implementation of server proto
* Almost got server grpc proto working, now only lnd client failing with tls cert issue
* Added server service and got it working in itest, it still doesn't do anything.
