Add demo pipeline source and wrapper

[tparchambault]

This is the C++ source to a six process pipeline that passes data via files in shared directories. This example is intended for demonstrating fapolicy-analyzer Profiler's ability to handle more complex applications, and present the results of the associated Profiler session.

See the README.md for build and run instructions. Note: g++ and make are required.

[tparchambault]

I will add License and CTC headers tomorrow AM.