Add vcpkg.json #235

Job	Run time
mingw / build mingw (Release)	5m 55s
mingw / build mingw (Debug)	6m 52s
android / build_android (Release, android_arm64_v8a, 6.5.1)	3m 3s
android / build_android (Release, android_armv7, 6.5.1)	2m 48s
android / build_android (Release, android_x86_64, 6.5.1)	3m 8s
doxygen / build_doxygen	1m 14s
macos / build_macos (Release, 6.5.1, clang_64)	3m 43s
macos / build_macos (Release, 5.15.2, clang_64)	3m 23s
msvc / build_msvc (Release, 6.6.0)	1m 1s
macos / build_macos (Release, 5.12.12, clang_64)	2m 14s
ubuntu / build_ubuntu (Release)	1m 53s
msvc / build_msvc (Release, 6.5.2)	1m 10s
ubuntu / build_ubuntu (Debug)	2m 36s
macos / build_macos (Debug, 6.5.1, clang_64)	4m 28s
msvc / build_msvc (Release, 5.15.2)	1m 9s
macos / build_macos (Debug, 5.15.2, clang_64)	3m 13s
msvc / build_msvc (Release, 5.12.12)	1m 11s
macos / build_macos (Debug, 5.12.12, clang_64)	8m 56s
msvc / build_msvc (Debug, 6.6.0)	1m 25s
msvc / build_msvc (Debug, 6.5.2)	1m 28s
msvc / build_msvc (Debug, 5.15.2)	1m 27s
msvc / build_msvc (Debug, 5.12.12)	1m 28s
deploy	0s
	1h 3m 45s

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