[test-suite] Adding the SimpleMOC proxy app

SimpleMOC: The purpose of this mini-app is to demonstrate the performance
characterterics and viability of the Method of Characteristics (MOC) for 3D
neutron transport calculations in the context of full scale light water reactor
simulation.

https://github.com/ANL-CESAR/SimpleMOC

Patch by Pavanravikanth Kondamudi, thanks!

Includes glibc_compat_rand.{c,h} written by me.

Differential Revision: https://reviews.llvm.org/D36621

git-svn-id: https://llvm.org/svn/llvm-project/test-suite/trunk@312615 91177308-0d34-0410-b5e6-96231b3b80d8
21 files changed