Build

use `getUnitsInBox(pos1, pos2)` overload #140

Job	Run time
lint / lint	18s
docs / Build linux64	1m 11s
test / Windows MSVC / Build win64	18m 18s
test / Linux gcc-10 / Build linux64	1m 29s
test / Linux gcc-12 / Build linux64	1m 49s
test / Run Linux test suite (gcc-12, all plugins) / Test (ubuntu, gcc-12, all plugins, default config)	47s
test / Run Linux test suite / Test (ubuntu, gcc-10, default plugins, default config)	54s
test / Run Windows test suite (empty config) / Test (windows, msvc, default plugins, empty config)	46s
test / Run Windows test suite / Test (windows, msvc, default plugins, default config)	45s
	26m 17s

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