feat: Vendor pezkuwi-subxt and pezkuwi-zombienet-sdk into monorepo

- Add pezkuwi-subxt crates to vendor/pezkuwi-subxt
- Add pezkuwi-zombienet-sdk crates to vendor/pezkuwi-zombienet-sdk
- Convert git dependencies to path dependencies
- Add vendor crates to workspace members
- Remove test/example crates from vendor (not needed for SDK)
- Fix feature propagation issues detected by zepter
- Fix workspace inheritance for internal dependencies
- All 606 crates now in workspace
- All 6919 internal dependency links verified correct
- No git dependencies remaining

vendor/pezkuwi-subxt/subxt/examples/setup_client_offline.rs

@@ -0,0 +1,32 @@
+#![allow(missing_docs)]
+use pezkuwi_subxt::{
+	OfflineClient, config::PezkuwiConfig, ext::codec::Decode, metadata::Metadata, utils::H256,
+};
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+	// We need to obtain the following details for an OfflineClient to be instantiated:
+
+	// 1. Genesis hash (RPC call: chain_getBlockHash(0)):
+	let genesis_hash = {
+		let h = "91b171bb158e2d3848fa23a9f1c25182fb8e20313b2c1eb49219da7a70ce90c3";
+		let bytes = hex::decode(h).unwrap();
+		H256::from_slice(&bytes)
+	};
+
+	// 2. A runtime version (system_version constant on a Bizinikiwi node has these):
+	let runtime_version =
+		pezkuwi_subxt::client::RuntimeVersion { spec_version: 9370, transaction_version: 20 };
+
+	// 3. Metadata (I'll load it from the downloaded metadata, but you can use `subxt metadata >
+	//    file.scale` to download it):
+	let metadata = {
+		let bytes = std::fs::read("./artifacts/pezkuwi_metadata_small.scale").unwrap();
+		Metadata::decode(&mut &*bytes).unwrap()
+	};
+
+	// Create an offline client using the details obtained above:
+	let _api = OfflineClient::<PezkuwiConfig>::new(genesis_hash, runtime_version, metadata);
+
+	Ok(())
+}