IPv6 dual stack is disabled by default, and Windows resolves wildcard
addresses to an IPv6 by default, so connecting through the local IPv4
address would not work.
This enables IPv6 dual stacking for the HTTP server by default like done
in upstream python when launching the module from CLI.
You can now run the test HTTP server by calling:
scons p=web serve
If you also wish to run the browser, call instead:
scons p=web run
The default listen port is 8060, but can be overriden via the env
variable GODOT_WEB_TEST_PORT which must be a valid integer.
This makes it easier to set up, as you always have Python installed
when building Godot. On the other hand, you don't always have Node.js
+ npm installed (and you may not want to spend time running `npm install`).
Co-authored-by: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
