Pass camera local to world offsets through vmcd.

	* event/sched/rpc.cc: Add the camera fixed_x,fixed_y values to the
	emcd.config file.

	* robots/emc/emcd.c: Pickup the cameras fixed_x,fixed_y values
	from the config file.  Add supports for setting the speed of the
	robot.

	* robots/mtp/mtp.h, robots/mtp/mtp.c: Add support for setting
	speed in GOTO packets and constructing vmc-client config packets.

	* robots/mtp/mtp.x: Add a vmc-client config packet that contains
	the cameras origin in world coordinates.

	* robots/mtp/mtp_dump.c: Dump the min/max values for x and y,
	handy for figuring out the bounds of the camera.

	* robots/vmcd/visionTrack.c, robots/vmcd/visionTrack.h: Handle
	cameras that are overlapping on two axes.

	* robots/vmcd/vmc-client.c: Accept a vmc-client config packet that
	tells us where the camera is in world coordinates.  Add an
	orientation flag that specifies how the camera is oriented wrt to
	the world coordinate system.

	* robots/vmcd/vmcd.c: Send vmc-client config packets out.  Fix a
	bug that left unknown tracks in the previous frame, which could
	confuse the matching algorithm causing it to match unknown tracks
	instead of valid known tracks.