feat(sdk): a context provider over embedder-supplied quorum keys and ChainLock height

.github/workflows/tests-rs-workspace.yml

@@ -448,6 +448,7 @@ jobs:
             --package dpp \
             --package drive-abci \
             --package dash-sdk \
+            --package dash-context-provider \
             --package dash-async \
             --package platform-value \
             --package platform-encryption \

packages/rs-context-provider/Cargo.toml

@@ -13,8 +13,14 @@ drive = { path = "../rs-drive", default-features = false, features = [
     "verify",
 ] }
 thiserror = "1.0"
-hex = { version = "0.4", optional = true }
+hex = "0.4"
 serde_json = { version = "1.0", optional = true }
 
 [features]
-mocks = ["hex", "serde_json", "dpp/serde-conversion"]
+mocks = ["serde_json", "dpp/serde-conversion"]
+# Lets `LocalContextProvider::with_system_contracts` serve system data
+# contracts. Each contract it serves must also be compiled into dpp, through
+# the matching feature below or the embedder's own dpp features.
+system-contracts = ["dpp/system_contracts"]
+dpns-contract = ["system-contracts", "dpp/dpns-contract"]
+dashpay-contract = ["system-contracts", "dpp/dashpay-contract"]

packages/rs-context-provider/src/lib.rs

@@ -4,9 +4,11 @@
 //! to fetch network state, data contracts, and quorum public keys.
 
 pub mod error;
+pub mod local;
 pub mod provider;
 
 pub use error::ContextProviderError;
+pub use local::LocalContextProvider;
 pub use provider::{ContextProvider, DataContractProvider, QuorumKeyFuture};
 
 #[cfg(feature = "mocks")]