CMake

Fix model download path for windows #279

Job	Run time
CMake/Android/So/ARMv8/Release	36s
CMake MINGW	46s
CMake/Android/So/X86/Release	35s
Test build with CMake 3.1.0	4m 0s
CMake/Android/So/X64/Release	45s
CMake/Windows/Dll/X86/Release	37s
CMake/Windows/Dll/X64/Release	1m 25s
CMake/Windows/Dll/ARMv8/Release	3m 37s
CMake/Linux/So/X64/Release	29s
CMake/MacOSX/So/X64/Release	1m 5s
CMake/MacOSX/Framework/X64/Release	1m 20s
CMake/iOS/Dll/arm64/Release	5m 15s
CMake/iOS/Framework/arm64/Release	53s
CMake/Windows/Lib/X86/Release	1m 4s
CMake/Windows/Lib/X64/Release	1m 0s
CMake/Windows/Lib/armv8/Release	52s
CMake/Linux/Lib/X64/Release	1m 1s
CMake/MacOSX/Lib/X64/Release	1m 49s
CMake/iOS/Lib/arm64/Release	1m 19s
CMake/Android/Lib/ARMv8/Release	35s
CMake/Android/Lib/X86/Release	30s
CMake/Android/Lib/X64/Release	38s
CMake/CustomModes/Linux/Lib/X64/Release	1m 8s
CMake/AssertionsFuzz/Windows/Lib/X64/Release	1m 33s
CMake/AssertionsFuzz/Linux/Lib/X64/Release	1m 5s
CMake/AssertionsFuzz/MacOSX/Lib/X64/Release	4m 4s
	38m 1s

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