Scripts to run clang-format formatting and clang-tidy checks on all source c++/cuda files

[golosio]

Prepared wrappers for clang-format and clang-tidy compatibility with CUDA / CUB headers and scripts to run formatting and checks on all source c++/cuda files. Formatted source c++/cuda files with clang-format. Checked with clang-tidy and made small fixes to solve warnings.