add fixed length str2int / asin str2int memory-mappable hashmap #983

Job	Run time
Build PyPI Wheel (3.8, manylinux2014_x86_64)	6m 48s
Build PyPI Wheel (3.8, manylinux2014_x86_64)	6m 48s
Build PyPI Wheel (3.8, manylinux2014_aarch64)	9m 35s
Build PyPI Wheel (3.8, manylinux2014_aarch64)	9m 35s
Build PyPI Wheel (3.9, manylinux2014_x86_64)	10s
Build PyPI Wheel (3.9, manylinux2014_x86_64)	6m 29s
Build PyPI Wheel (3.9, manylinux2014_aarch64)	9m 36s
Build PyPI Wheel (3.9, manylinux2014_aarch64)	9m 36s
Build PyPI Wheel (3.10, manylinux2014_x86_64)	31s
Build PyPI Wheel (3.10, manylinux2014_x86_64)	6m 27s
Build PyPI Wheel (3.10, manylinux2014_aarch64)	9m 19s
Build PyPI Wheel (3.10, manylinux2014_aarch64)	9m 19s
Build PyPI Wheel (3.11, manylinux2014_x86_64)	9m 58s
Build PyPI Wheel (3.11, manylinux2014_x86_64)	9m 58s
Build PyPI Wheel (3.11, manylinux2014_aarch64)	9m 31s
Build PyPI Wheel (3.11, manylinux2014_aarch64)	9m 31s
	2h 3m 11s

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