Modify appveyor.yml #134

Job	Run time
mingw / build mingw (Release)	11m 55s
android / build_android (Release, android_arm64_v8a, 6.6.2)	1m 36s
macos / build_macos (Release, 6.6.2)	8m 52s
mingw / build mingw (Debug)	12m 2s
android / build_android (Release, android_armv7, 6.6.2)	1m 38s
macos / build_macos (Release, 5.15.2)	6m 14s
android / build_android (Release, android_x86_64, 6.6.2)	1m 32s
macos / build_macos (Release, 5.12.12)	2m 54s
macos / build_macos (Debug, 6.6.2)	8m 2s
msvc / build_msvc (Release, 6.6.2)	8m 16s
macos / build_macos (Debug, 5.15.2)	3m 6s
ubuntu / build_ubuntu (Release)	4m 43s
msvc / build_msvc (Release, 5.15.2)	5m 53s
macos / build_macos (Debug, 5.12.12)	3m 14s
ubuntu / build_ubuntu (Debug)	6m 24s
msvc / build_msvc (Release, 5.12.12)	5m 53s
msvc / build_msvc (Debug, 6.6.2)	5m 23s
msvc / build_msvc (Debug, 5.15.2)	4m 31s
msvc / build_msvc (Debug, 5.12.12)	5m 32s
deploy	1s
	1h 47m 41s

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