added numa slides and examples

examples/simple_numa/Makefile

examples/simple_numa/timer.hpp

examples/simple_numa/vector_multiply.cpp

examples/simple_numa/vector_multiply_numa.cpp

examples/simple_numa/vector_multiply_numa_affinity.cpp

examples/simple_numa/vector_multiply_openmp.cpp

examples/simple_numa/vector_multiply_openmp_numa.cpp

examples/simple_numa/vector_multiply_tbb_numa.cpp

examples/simple_numa/vector_multiply_tbb_numa_affinity.cpp

examples/simple_numa/vector_multiply_threaded.cpp

lecture_notes/HPCSE II - NUMA and memory.pdf