Added new libvirtqueue

Created a new multi-buffer, scatter-gather libvirtqueue, closer to
compliance with the virtio standard.

projects_libs: global configuration lib

this commit removes autoconf.h generation from projects_libs and
append '#include <<lib_name>/gen_config.h>' after each
'#include <autoconf.h>' since autoconf.h is only the for the
kernel config now. This is a temporarily solution, since we
currently don't have a way to tell which header files each file
is trying to include when it includes 'autoconf.h'

CMake: Remove redundant globs

vswitch: Added vswitch library implementation

Added the libvswitch library implementation. This is a library
which provides utility functions for managing and routing virtual
LANs in a VMM environment.