Add os time support and small fixes for vpk export #20

Job	Run time
📊 Static / Static Checks (clang-format, black format, file format, documentation checks)	2m 37s
🐧 Linux / Editor w/ Mono (target=release_debug, tools=yes)	27m 46s
🍏 iOS / Template (target=release, tools=no)	5m 11s
🐧 Linux / Editor and sanitizers (target=debug, tools=yes, use_asan=yes, use_ubsan=yes, linker=gold)	35m 25s
🤖 Android / Template (target=release, tools=no)	15m 33s
🐧 Linux / Template w/ Mono (target=release, tools=no)	13m 59s
🌐 JavaScript / Template (target=release, tools=no)	12m 53s
🍎 macOS / Editor (target=release_debug, tools=yes)	9m 12s
🎮 PSVita / Template (target=release, tools=no)	36m 12s
🍎 macOS / Template (target=release, tools=no)	4m 30s
☁ Server / Linux Headless w/ Mono (target=release_debug, tools=yes)	19m 1s
🏁 Windows / Editor (target=release_debug, tools=yes)	21m 36s
☁ Server / Linux Server w/ Mono (target=release, tools=no)	11m 47s
🏁 Windows / Template (target=release, tools=no)	13m 17s
	3h 48m 59s

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