Restarted the production of the app

libs/Catch2/.gitignore

@@ -0,0 +1,31 @@
+*.build
+*.pbxuser
+*.mode1v3
+*.ncb
+*.suo
+Debug
+Release
+*.user
+*.xcuserstate
+.DS_Store
+xcuserdata
+CatchSelfTest.xcscheme
+Breakpoints.xcbkptlist
+projects/VS2010/TestCatch/_UpgradeReport_Files/
+projects/VS2010/TestCatch/TestCatch/TestCatch.vcxproj.filters
+projects/VisualStudio/TestCatch/UpgradeLog.XML
+projects/CMake/.idea
+projects/CMake/cmake-build-debug
+UpgradeLog.XML
+Resources/DWARF
+projects/Generated
+*.pyc
+DerivedData
+*.xccheckout
+Build
+.idea
+.vs
+cmake-build-*
+benchmark-dir
+.conan/test_package/build
+bazel-*