crypto_box_easy support #511

Job	Run time
Python 3.7 on macos-13	2m 53s
Linux docs	1m 7s
Python 3.12 on macos-13	2m 53s
Python 3.7 on Windows x86	2m 23s
Linux meta	1m 4s
Python 3.12 (minimal build) on macos-13	3m 3s
Python 3.8 on Windows x86	2m 33s
Linux mypy	1m 2s
Python 3.12 on macos-latest	1m 28s
Python 3.9 on Windows x86	2m 37s
Linux pypy3	2m 23s
Python 3.12 (minimal build) on macos-latest	1m 28s
Python 3.10 on Windows x86	2m 41s
Linux pypy3	3m 2s
Python 3.11 on Windows x86	2m 41s
Python 3.12 on Windows x86	2m 32s
Python 3.7 on Windows x64	2m 16s
Linux py37	1m 19s
Python 3.8 on Windows x64	2m 16s
Linux py38	1m 24s
Python 3.9 on Windows x64	1m 45s
Linux py39	1m 25s
Linux py310	1m 25s
Linux py311	1m 19s
Python 3.10 on Windows x64	2m 10s
Linux py312	1m 24s
Python 3.11 on Windows x64	1m 47s
Linux py312 system	2m 3s
Python 3.12 on Windows x64	2m 12s
Linux py312 minimal	1m 21s
	59m 56s

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