Publish ssz_types (and deps) to crates.io (#468)

* Rename `hashing` crate to `eth2_hashing`

* Add license, desc to eth2_hashing Cargo.toml

* Remove merkle root from eth2 hashing

* Remove old benches folder (zombied from old branch)

* Add docs to eth2_hashing

* Prepare tree_hash for publishing on crates.io

* Update deps to use crates.io instead of paths

* Update all crates to pull ssz from crates.io

* Remove cached_tree_hash, add patches to manifest

* Fix compile error in benches

* Remove unused code

* Fix fake_crypto compile error

tests/ef_tests/Cargo.toml

@@ -17,9 +17,8 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_repr = "0.1"
 serde_yaml = "0.8"
-eth2_ssz = { path = "../../eth2/utils/ssz" }
-tree_hash = { path = "../../eth2/utils/tree_hash" }
-cached_tree_hash = { path = "../../eth2/utils/cached_tree_hash" }
+eth2_ssz = "0.1"
+tree_hash = "0.1"
 state_processing = { path = "../../eth2/state_processing" }
 swap_or_not_shuffle = { path = "../../eth2/utils/swap_or_not_shuffle" }
 types = { path = "../../eth2/types" }

tests/ef_tests/src/cases/ssz_static.rs

@@ -1,6 +1,5 @@
 use super::*;
 use crate::case_result::compare_result;
-use cached_tree_hash::CachedTreeHash;
 use serde_derive::Deserialize;
 use ssz::{Decode, Encode};
 use std::fmt::Debug;
@@ -103,7 +102,6 @@ where
         + PartialEq<T>
         + serde::de::DeserializeOwned
         + TreeHash
-        + CachedTreeHash
         + TestRandom,
 {
     // Verify we can decode SSZ in the same way we can decode YAML.