Refactor: Replace SFINAE by `if constexpr` for `create_mirror*` funct… #4

Job	Run time
CI (fedora:latest, g++, Release, OPENMP)	26m 27s
CI (fedora:latest, g++, Debug, OPENMP)	33m 22s
CI (fedora:latest, clang++, Release, OPENMP)	25m 11s
CI (fedora:latest, clang++, Debug, OPENMP)	34m 29s
CI (ubuntu:latest, g++, Release, OPENMP)	28m 2s
CI (ubuntu:latest, g++, Debug, OPENMP)	35m 5s
CI (ubuntu:latest, clang++, Release, OPENMP)	25m 57s
CI (ubuntu:latest, clang++, Debug, OPENMP)	35m 16s
CI (ubuntu:intel, icpc, -diag-disable=177,10441, Release, OPENMP)	47m 41s
CI (ubuntu:intel, icpc, -diag-disable=177,10441, Debug, OPENMP)	50m 44s
CI (ubuntu:intel, icpx, -fp-model=precise -Wno-pass-failed, Release, OPENMP)	28m 2s
CI (ubuntu:intel, icpx, -fp-model=precise -Wno-pass-failed, Debug, OPENMP)	35m 42s
CI (ubuntu:latest, clang++, -fsanitize=address, RelWithDebInfo, THREADS, -DCMAKE_CXX_CLANG_TIDY="...	53m 57s
CI (ubuntu:latest, clang++, -fsanitize=address, RelWithDebInfo, SERIAL, -fsanitize=address)	37m 12s
CI (ubuntu:latest, g++, RelWithDebInfo, THREADS)	33m 2s
	8h 50m 9s

Provide feedback