0f1 0f2 1f0 1f1 2f0 +linfnorm and some corrections to limit values of pow and log #302

Job	Run time
macosx (-O0)	23s
macosx (-O0 -stdlib=libc++, -stdlib=libc++)	27s
linux (g++, -O3 -DNDEBUG)	3m 42s
macosx (-O3 -flto -DNDEBUG)	20s
linux (clang++, -O3 -DNDEBUG)	2m 59s
macosx (-O3 -flto -DNDEBUG -stdlib=libc++, -stdlib=libc++)	26s
linux (g++, -O3 -DNDEBUG -mavx2)	4m 36s
linux (clang++, -O3 -DNDEBUG -mavx2)	2m 44s
linux (g++, -O3 -DNDEBUG -march=skylake-avx512)	1m 54s
linux (clang++, -O3 -DNDEBUG -march=skylake-avx512)	3m 56s
	21m 27s

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