Updates to make crates publishable (#2472)

## Issue Addressed

Related to: #2259

Made an attempt at all the necessary updates here to publish the crates to crates.io. I incremented the minor versions on all the crates that have been previously published. We still might run into some issues as we try to publish because I'm not able to test this out but I think it's a good starting point.

## Proposed Changes

- Add description and license to `ssz_types` and `serde_util`
- rename `serde_util` to `eth2_serde_util`
- increment minor versions
- remove path dependencies
- remove patch dependencies 

## Additional Info
Crates published: 

- [x] `tree_hash` -- need to publish `tree_hash_derive` and `eth2_hashing` first
- [x] `eth2_ssz_types` -- need to publish `eth2_serde_util` first
- [x] `tree_hash_derive`
- [x] `eth2_ssz`
- [x] `eth2_ssz_derive`
- [x] `eth2_serde_util`
- [x] `eth2_hashing`


Co-authored-by: realbigsean <seananderson33@gmail.com>

validator_client/slashing_protection/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 tempfile = "3.1.0"
 types = { path = "../../consensus/types" }
-tree_hash = "0.1.1"
+tree_hash = "0.3.0"
 rusqlite = { version = "0.25.3", features = ["bundled"] }
 r2d2 = "0.8.9"
 r2d2_sqlite = "0.18.0"
@@ -15,7 +15,7 @@ parking_lot = "0.11.0"
 serde = "1.0.116"
 serde_derive = "1.0.116"
 serde_json = "1.0.58"
-serde_utils = { path = "../../consensus/serde_utils" }
+eth2_serde_utils = "0.1.0"
 filesystem = { path = "../../common/filesystem" }
 
 [dev-dependencies]

validator_client/slashing_protection/src/interchange.rs

@@ -8,7 +8,7 @@ use types::{Epoch, Hash256, PublicKeyBytes, Slot};
 #[derive(Debug, Clone, PartialEq, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct InterchangeMetadata {
-    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
     pub interchange_format_version: u64,
     pub genesis_validators_root: Hash256,
 }
@@ -24,7 +24,7 @@ pub struct InterchangeData {
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct SignedBlock {
-    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
     pub slot: Slot,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub signing_root: Option<Hash256>,
@@ -33,9 +33,9 @@ pub struct SignedBlock {
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct SignedAttestation {
-    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
     pub source_epoch: Epoch,
-    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
     pub target_epoch: Epoch,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub signing_root: Option<Hash256>,