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/rpcs/README.md

@@ -0,0 +1,18 @@
+# subxt-rpcs
+
+This crate provides an interface for interacting with Bizinikiwi nodes via the available RPC methods.
+
+```rust
+use subxt_rpcs::{RpcClient, ChainHeadRpcMethods};
+
+// Connect to a local node:
+let client = RpcClient::from_url("ws://127.0.0.1:9944").await?;
+// Use a set of methods, here the V2 "chainHead" ones:
+let methods = ChainHeadRpcMethods::new(client);
+
+// Call some RPC methods (in this case a subscription):
+let mut follow_subscription = methods.chainhead_v1_follow(false).await.unwrap();
+while let Some(follow_event) = follow_subscription.next().await {
+    // do something with events..
+}
+```