Added coalescing throughput test with offset and stride tests
Added coalescing throughput test with offset and stride tests

MMp131316/code-samples,MMp131316/code-samples,xiongzhanblake/code-samples,xiongzhanblake/code-samples,MMp131316/code-samples,MMp131316/code-samples,xiongzhanblake/code-samples,xiongzhanblake/code-samples,xiongzhanblake/code-samples,xiongzhanblake/code-samples,xiongzhanblake/code-samples,MMp131316/code-samples,MMp131316/code-samples,MMp131316/code-samples