scaffold verifier trait (#602)

* remove some unused dependencies

* remove hyper from validation service

* verification for Grant/Legacy credential types

* verification trait

* async

* fix compile

* credential

* basic verification using what is in xmtp_mls

* basic renaming

* remove the test

* add a test and some comments

* fix comment

* remove new for TestCred

Author: insipx

Cargo.lock

@@ -11,7 +11,6 @@ path = "src/main.rs"
 clap = { version = "4.4.6", features = ["derive"] }
 env_logger = "0.10.0"
 hex = { workspace = true }
-hyper = "1.1.0"
 log = { workspace = true }
 openmls = { workspace = true }
 openmls_basic_credential = { workspace = true }

mls_validation_service/Cargo.toml

@@ -15,7 +15,6 @@ pbjson = "0.5.1"
 pbjson-types = "0.5.1"
 prost = { workspace = true, features = ["prost-derive"] }
 serde = { workspace = true, features = ["derive"] }
-serde_json.workspace = true 
 tokio = { workspace = true, features = ["macros", "rt-multi-thread", "time"] }
 tonic = { workspace = true, features = [
     "tls",

xmtp_api_grpc/Cargo.toml

@@ -15,7 +15,10 @@ xmtp_proto.workspace = true
 openmls_traits.workspace = true
 openmls.workspace = true
 openmls_basic_credential.workspace = true
+openmls_rust_crypto.workspace = true
 prost.workspace = true
-tls_codec.workspace = true
 chrono.workspace = true
 serde.workspace = true
+async-trait.workspace = true
+futures.workspace = true
+