Respect Proxy Options

Adds full SOCKS-proxy support to the Minecraft client by adding support for the built-in JVM arguments in the Netty pipeline.

You can, for example, use this in order to proxy the Minecraft client through Tor or a SSH dynamic proxy.

JVM Argument Configuration

Name	Description	Default	Example	v4	v5
socksProxyHost	The hostname of the SOCKS proxy to connect to.		-DsocksProxyHost=127.0.0.1	Yes	Yes.
socksProxyPort	The port the SOCKS proxy is operating on relative to the provided socksProxyHost	1080	-DsocksProxyHost=8080	Yes.	Yes.
java.net.socks.username	The username to authenticate with. This is ignored if a java.net.Authenticator instance is configured.		-Djava.net.socks.username=bob	Yes.	Yes, but the password argument must be provided as well.
java.net.socks.password	The password to authenticate with. This is also ignored if a java.net.Authenticator instance is configured.		-Djava.net.socks.password=password123	No.	Yes, but the username argument must be provided as well.