NVIDIA DALI third party dependencies

This part of the repository contains extra dependencies required to build DALI, consisting mostly of externally hosted subrepositories:

Repository	Version	License
Google Benchmark	1.7.0	Apache License 2.0
Boost Preprocessor	1.80.0	Boost Software License 1.0
COCO API	Top-of-tree (Feb 20, 2020)	BSD 2-Clause License
CUTLASS	2.9.1	BSD 3-Clause License
DLPack	0.7	Apache License 2.0
FFTS	Custom fork top-of-tree (Jan 23, 2020)	BSD 3-Clause License
GoogleTest	1.12.1	BSD 3-Clause License
libcu++	Custom fork (Aug 30, 2021)	Apache License v2.0 with LLVM Exceptions
pybind11	2.10.0	BSD 3-Clause License
RapidJSON	Top-of-tree (Aug 23, 2022)	MIT License, BSD 3-Clause License, JSON License