Add file browser application #1383

Job	Run time
doxygen	0s
msvc / build_msvc (Release, 6.6.2)	4m 42s
msvc / build_msvc (Release, 5.15.2)	4m 27s
msvc / build_msvc (Release, 5.12.12)	4m 27s
android / build_android (Release, android_arm64_v8a, 6.6.2)	3m 1s
macos / build_macos (Release, 6.6.2, clang_64)	6m 30s
msvc / build_msvc (Debug, 6.6.2)	4m 12s
android / build_android (Release, android_x86_64, 6.6.2)	3m 0s
macos / build_macos (Release, 5.15.2, clang_64)	3m 39s
msvc / build_msvc (Debug, 5.15.2)	4m 0s
macos / build_macos (Release, 5.12.12, clang_64)	3m 49s
msvc / build_msvc (Debug, 5.12.12)	5m 42s
macos / build_macos (Debug, 6.6.2, clang_64)	5m 33s
mingw / build mingw (Release)	4m 47s
macos / build_macos (Debug, 5.15.2, clang_64)	3m 12s
mingw / build mingw (Debug)	5m 0s
macos / build_macos (Debug, 5.12.12, clang_64)	3m 12s
ubuntu / build_ubuntu (Release)	6m 3s
ubuntu / build_ubuntu (Debug)	5m 1s
deploy	0s
	1h 20m 17s

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