simple/rw bw/lat tests: Minor cleanups

Minor adjustments to white spacing and other cleanups

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
simple/ud_pingpong.c: Add new test

Signed-off-by: Reese Faucette <rfaucett@cisco.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Merge pull request #31 from shefty/master

UD pingpong and test cleanups