Enable setting file times for any writable files #144

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Job	Run time
Build for Android and Redox (x86_64-linux-android)	13s
Publish Documentation	11s
Build for Android and Redox (x86_64-unknown-redox)	12s
Rustfmt	11s
Test (stable)	17s
Test (beta)	14s
Test (nightly)	14s
Test (macos)	22s
Test (win32)	37s
Test (win64)	39s
Test (mingw)	34s
	3m 44s

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