Build

initial implementation of `Files` subsystem #11258

Job	Run time
check-pr	4s
docs / Build linux64	1m 16s
lint / lint	21s
package / Windows / Build win64	4m 21s
package / Linux / Build linux64	1m 58s
test / Windows MSVC / Build win64	4m 1s
test / Linux gcc-11 / Build linux64	1m 40s
test / Linux gcc-12 / Build linux64	2m 29s
test / Run Linux test suite / Test (ubuntu, gcc-11, default plugins, default config)	4m 2s
test / Run Linux test suite (gcc-12, all plugins) / Test (ubuntu, gcc-12, all plugins, default config)	4m 3s
test / Run Windows test suite (empty config) / Test (windows, msvc, default plugins, empty config)	4m 6s
test / Run Windows test suite / Test (windows, msvc, default plugins, default config)	3m 58s
	32m 19s

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