[java] Added initial sys.net support


git-svn-id: http://haxe.googlecode.com/svn/trunk@6590 f16182fa-f095-11de-8f43-4547254af6c6
[java/cs] added changes


git-svn-id: http://haxe.googlecode.com/svn/trunk@6591 f16182fa-f095-11de-8f43-4547254af6c6