Initial prototype commit of send_stream, recv_stream and display_video.

Prototype test environment:
-Send_Stream built and tested on an Olinuxino A10 Lime 4GB, running Ubuntu with a Logitech C160 webcam
-Recv_Stream and Display_Video built and tested on a 64bit AMD desktop running Ubuntu 14.04
- LAN was hardwired through an Actiontec GT724WGR router
Results:
-TCP client/server connection established and video transmitted, received and displayed.
-640x480 YUYV format video was used generating a fixed frame size of 614400 bytes.  
-Network bandwidth varied between 4.7 and 9.8 MB/s resulting in between 8 and 15 fps.  
-CPU usage according to Top stayed under 15% on the A10
-Video lag was low, but unmeasured
Bugs:
3.18.0-armv7-x2 linux kernel hangs with some wireless lan adapters
YUYV decoder in recv_stream not properly implemented
send_video must be restarted every time recv_video is closed