Added pt probes and connection probes for testing.
Added pt probes and connection probes for testing.

git-svn-id: http://svn.code.sf.net/p/petavision/code/sandbox@1796 7c0444ca-5550-0410-9008-faecdbe78eb5

Former-commit-id: eaa7f1c7a11f1849e35a84dd739fd2eae22443b4
dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,PetaVision/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV