* begin using tree hash instead of hash for state and blocks
* replace with ssz
* rem references to vote cache
* replace all instances of state/block hash with root
* goimports
* almost every test in the world fails
* goimports
* all tests pass, tree hash across repo
* begin reorder
* move into beacon server
* add proposer server
* fix
* add proposer server
* wrap up rpc reorder
* eliminated deprecated RPC endpoints
* formatted nicely
* RPC protos
* fix lint
* integrate hash proto
* autoclean
* deprecate all old code
* include the rest of methods mocks
* bazel run
* lint fixes