[wasm][debugger] Add per-test ids, and save logs to files for the test, and proxy...

[wasm][debugger] Add per-test ids, and save logs to files for the test, and proxy messages (#63564)

* [wasm][debugger] Add test ids, and log test output, and proxy messages

.. to files.

* log level cleanup

* [wasm][debugger] Allow setting proxy port for BrowserDebugHost

.. with `--proxy-port=<port>`.

Fixes https://github.com/dotnet/runtime/issues/65209 .