Fuzz To VM

This patchseries adds a simple fuzz test based design to test vhost_user.
It consists of two patches
 - add the fuzz design
 - add bench based script to easily launch VM + fuzz design

NOTE: The current status of DPDK is that it does not support jumbo packets, so it segfaults with our fuzz test
Use this as an example of how to employ fuzz test.