Merge branch 'tests' into develop

CMakeLists.txt

packages/Catch2/.gitattributes

packages/Catch2/.github/issue_template.md

packages/Catch2/.github/pull_request_template.md

packages/Catch2/.gitignore

packages/Catch2/.gitrepo

packages/Catch2/.travis.yml

packages/Catch2/CMake/FindGcov.cmake

packages/Catch2/CMake/FindLcov.cmake

packages/Catch2/CMake/Findcodecov.cmake

packages/Catch2/CMake/llvm-cov-wrapper

packages/Catch2/CMakeLists.txt

packages/Catch2/CODE_OF_CONDUCT.md

packages/Catch2/LICENSE.txt

packages/Catch2/README.md

packages/Catch2/appveyor.yml

packages/Catch2/artwork/catch2-c-logo.png

packages/Catch2/artwork/catch2-hand-logo.png

packages/Catch2/artwork/catch2-logo-small.png

packages/Catch2/catch.pc.in