PyTorch kernel templates sycl example for triage compiler behaviors

Notes:

1. CPU offload functor to GPU with substantial member size
2. Kernel is 'single shot' style, means no loop.
3. Kernel access member for calculating tensor array strides and dimension edges

Build System Overview

Makefile dissects SYCL compiler into multiple stages.

1. Object stage, compile source files into offloading byte-code and host objects, generating integration headers
2. Bundle both objects and byte-codes into single object
3. Debug device compilation process by make <appname>.debug, it'll generate linking and device compilation process for IGC commands