x.websocket: move to net.websocket module (#10648)

vlib/net/websocket/tests/autobahn/README.md

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+# Autobahn tests
+
+This is the autobahn automatic tests on build.
+The performance tests are skipped due to timeouts in Github actions.
+
+## Run it locally
+
+### Test the client
+
+This is how to test the client:
+
+1. Run the docker autobahn test suite by running the `docker-compose up`
+2. From the `local_run` folder, compile and run `autobahn_client.v` to test non ws (no TLS) and 
+`autobahn_client_wss.v` to run the TLS tests
+3. Open `http://localhost:8080` and browse client test results for non TLS and `https://localhost:8081` 
+if you ran the wss tests (it uses local certificat so you will get trust error but just accept use)
+
+### Test the server
+
+Todo: add information here