Use `CreateFileMapping\MapViewOfFile` and `UnmapViewOfFile\CloseHandle` instead of `VitualAllocEx` and VirtualFreeEx` on Windows #473

Job	Run time
spell check with typos	3s
docs-pr	5s
build-on-windows (windows-debug)	37s
build-on-linux (linux-kvm-debug)	1m 11s
build-on-windows (windows-release)	38s
build-on-linux (linux-kvm-release)	1m 13s
build-on-linux (linux-hyperv-debug)	1m 11s
build-on-linux (linux-hyperv-release)	1m 11s
fuzzing / fuzz	9m 48s
rust / build (hyperv, amd, debug)	8m 8s
rust / build (hyperv, amd, release)	8m 15s
rust / build (hyperv, intel, debug)	8m 14s
rust / build (hyperv, intel, release)	8m 18s
rust / build (mshv, amd, debug)	8m 53s
rust / build (mshv, amd, release)	1s
rust / build (mshv, intel, debug)	8m 45s
rust / build (mshv, intel, release)	9m 0s
rust / build (kvm, amd, debug)	8m 57s
rust / build (kvm, amd, release)	8m 56s
rust / build (kvm, intel, debug)	8m 30s
rust / build (kvm, intel, release)	8m 33s
	1h 50m 27s

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