[WIP] Update npm tests to work in Windows.
* Extend timeout for WebSocket test.
* Windows networking doesn't like connecting to 0.0.0.0. Use 127.0.0.1
* Additional command line options in config. Can potentially be used to run rippled in a debugger.
[POC] quick test of rvalue behavior, specifically for cross platform.
Picked a random file to add the test. Do not merge these changes unless
the test is moved somewhere appropriate.