Add light client platform WASM compatible (#1026)

* Cargo update in prep for wasm build

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Add light client test

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Implement low level socket

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Add native platform primitives

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Add wasm platform primitives

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Implement smoldot platform

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Adjust code to use custom platform

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Adjust feature flags

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* tests: Adjust wasm endpoint to accept ws for p2p

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Adjust wasm socket

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Book mention of wasm

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Propagate env variable properly

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Revert to native feature flags

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Use tokio rt-multi-thread feature

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* subxt: Add tokio feature flags for native platform

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm: Use polkadot live for wasm testing

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm: Add support for DNS p2p addresses

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm: Disable logs

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm: Run wasm test for firefox driver

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm: Reenable chrome driver

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Move lightclient RPC to dedicated crate for better feature flags and modularity

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Use subxt-lightclient low level RPC crate

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Apply cargo fmt

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Enable default:native feature for cargo check

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Extra step for subxt-lightclient similar to signer crate

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Remove native platform code and use smoldot instead

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* codegen: Enable tokio/multi-threads

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Refactor modules

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Adjust testing crates

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Run light-client WASM tests

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm-rpc: Remove light-client imports

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* testing: Update wasm cargo.lock files

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Spawn substrate node with deterministic p2p address for WASM tests

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm_socket: Use rc and refcell

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* wasm_socket: Switch back to Arc<Mutex<>>

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Add comments

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

subxt/src/rpc/types.rs

@@ -227,8 +227,6 @@ pub type SystemProperties = serde_json::Map<String, serde_json::Value>;
 ///
 /// This is copied from `sp-transaction-pool` to avoid a dependency on that crate. Therefore it
 /// must be kept compatible with that type from the target substrate version.
-///
-/// Substrate produces `camelCase` events, while smoldot produces `CamelCase` events.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub enum SubstrateTxStatus<Hash, BlockHash> {