L3 API test

Vitis BLAS level 3 provides test cases could build xclbin and run it.

1. Vitis BLAS L3 compilation

All tests provided here could be built with compilation steps similar to the following, target could be either hw or hw_emu(for testing hw emulation)

make host TARGET=hw

2. Vitis BLAS L3 run

Tests could be run with the following steps, target could be either hw or hw_emu(for testing hw emulation)

make run TARGET=hw PLATFORM_REPO_PATHS=LOCAL_PLATFORM_PATH