WIP on adding sized output support to copy_if with device policies #5199

Job	Run time
clang-format	20s
HOST,bknd=omp,cmplr=clang++,macos-latest,std=c++17,cfg=release	2m 14s
HOST,bknd=tbb,cmplr=cl,windows-latest,std=c++17,cfg=release	2m 5s
HOST,bknd=serial,cmplr=cl,windows-latest,std=c++20,cfg=RelWithAsserts	2m 6s
CPU,bknd=dpcpp,cmplr=icx,windows-latest,std=c++17,cfg=release	2m 11s
HOST,bknd=tbb,cmplr=icx-cl,windows-latest,std=c++17,cfg=release	1m 48s
HOST,bknd=tbb,cmplr=icx-cl,windows-latest,std=c++20,cfg=RelWithAsserts	2m 16s
HOST,bknd=tbb,cmplr=icpx,ubuntu-latest,std=с++17,cfg=release	2m 10s
CPU,bknd=dpcpp,cmplr=icx,windows-latest,std=c++20,cfg=RelWithAsserts	2m 12s
HOST,bknd=omp,cmplr=g++,ubuntu-latest,std=с++17,cfg=release	2m 9s
HOST,bknd=tbb,cmplr=g++,ubuntu-latest,std=с++17,cfg=release	2m 11s
HOST,bknd=serial,cmplr=g++,ubuntu-latest,std=с++17,cfg=release	2m 11s
CPU,bknd=dpcpp,cmplr=icpx,ubuntu-latest,std=с++17,cfg=release	2m 10s
HOST,bknd=omp,cmplr=icpx,ubuntu-latest,std=с++20,cfg=RelWithAsserts	2m 12s
HOST,bknd=tbb,cmplr=clang++,ubuntu-latest,std=с++17,cfg=release	2m 12s
HOST,bknd=omp,cmplr=icpx,ubuntu-latest,std=с++17,cfg=release	2m 11s
HOST,bknd=omp,cmplr=clang++,ubuntu-latest,std=с++17,cfg=release	2m 10s
FPGA_EMU,bknd=dpcpp,cmplr=icpx,ubuntu-latest,std=с++17,cfg=release	2m 7s
HOST,bknd=serial,cmplr=g++,ubuntu-latest,std=с++20,cfg=RelWithAsserts	2m 12s
CPU,bknd=dpcpp,cmplr=icpx,ubuntu-latest,std=с++20,cfg=RelWithAsserts	1m 9s
HOST,bknd=tbb,cmplr=icpx,ubuntu-latest,std=с++20,cfg=RelWithAsserts	2m 10s
	42m 26s

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