[SYCL] Add structure to pass references to ranges#19805

Alexandr-Konovalov wants to merge 16 commits intointel:syclintel/llvm:syclfrom

Alexandr-Konovalov:Alexandr-Konovalov/ref-ndrangeAlexandr-Konovalov/llvm:Alexandr-Konovalov/ref-ndrangeCopy head branch name to clipboard