Lowlevel platform-independent network support

GSocket — Low-level socket object
GInetAddress — An IPv4/IPv6 address
GSocketAddress — Abstract base class representing endpoints for socket communication
GInetSocketAddress — Internet GSocketAddress
GUnixSocketAddress — UNIX GSocketAddress
GSocketControlMessage — A GSocket control message
GUnixFDMessage — A GSocketControlMessage containing a list of file descriptors