Generate polygonToCells benchmark with Natural Earth country geometry #1249

Job	Run time
Test Compile clang Debug	4m 2s
CMake correctness checks	5s
Test Compile clang Release	3m 18s
Coverage	4m 54s
Test Compile clang Debug -fsanitize=undefined,float-divide-by-zero -fno-sanitize-recover=undefined,float-divide-by-zero	9m 57s
Test Compile clang Release -fsanitize=undefined,float-divide-by-zero -fno-sanitize-recover=undefined,float-divide-by-zero	3m 10s
Test Compile gcc Debug	4m 47s
Test Valgrind	14m 11s
Test Compile gcc Release	3m 51s
Test Compile clang Debug -fsanitize=memory -fno-sanitize-recover=memory	13m 24s
Test Compile clang Release -fsanitize=memory -fno-sanitize-recover=memory	5m 50s
Test Compile clang Debug -fsanitize=address -fno-sanitize-recover=address	5m 35s
Test Compile clang Release -fsanitize=address -fno-sanitize-recover=address	4m 12s
	1h 17m 16s

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