message: Make raw `Client::send` method public
  chore(kube-client): make raw send method public
  This makes the send method public, which can be used to communicate directly with the API server.
  This can be used to create a proxy server or application-level gateway between localhost and the
  Kubernetes API server.
diff: @@ -132,7 +132,10 @@ impl Client {
  &self.default_ns
  }
  - async fn send(&self, request: Request<Body>) -> Result<Response<Body>> {
  + /// Perform a raw HTTP request against the API and return the raw response back.
  + /// This method can be used to get raw access to the API which may be used to, for example,
  + /// create a proxy server or application-level gateway between localhost and the API server.
  + pub async fn send(&self, request: Request<Body>) -> Result<Response<Body>> {
  let mut svc = self.inner.clone();
  let res = svc
  .ready()
  