CMake: modify qt designer plugin #239

Job	Run time
doxygen / build_doxygen	1m 0s
mingw / build mingw (Release)	7m 39s
android / build_android (Release, android_arm64_v8a, 6.5.1)	3m 28s
mingw / build mingw (Debug)	9m 43s
macos / build_macos (Release, 6.5.1, clang_64)	6m 21s
android / build_android (Release, android_armv7, 6.5.1)	3m 21s
macos / build_macos (Release, 5.15.2, clang_64)	7m 21s
android / build_android (Release, android_x86_64, 6.5.1)	3m 17s
msvc / build_msvc (Release, 6.6.0)	8m 4s
macos / build_macos (Release, 5.12.12, clang_64)	5m 32s
ubuntu / build_ubuntu (Release)	1m 39s
msvc / build_msvc (Release, 6.5.2)	7m 58s
macos / build_macos (Debug, 6.5.1, clang_64)	6m 22s
ubuntu / build_ubuntu (Debug)	1m 38s
msvc / build_msvc (Release, 5.15.2)	8m 0s
macos / build_macos (Debug, 5.15.2, clang_64)	5m 41s
msvc / build_msvc (Release, 5.12.12)	8m 3s
macos / build_macos (Debug, 5.12.12, clang_64)	7m 13s
msvc / build_msvc (Debug, 6.6.0)	8m 53s
msvc / build_msvc (Debug, 6.5.2)	9m 9s
msvc / build_msvc (Debug, 5.15.2)	9m 42s
msvc / build_msvc (Debug, 5.12.12)	9m 31s
deploy	0s
	2h 19m 35s

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