This directory provides a location where external projects can be cloned that are used by the loader.
Tests require GoogleTest on all platforms and Detours on Windows only.
The dependencies for testing need to be manually downloaded into this folder. CMake configuring will fail if they are not present If the repositories are already in the external folder, then CMake won't download them.
To download googletest
git clone https://github.com/google/googletest.git
To download Detours (only necessary for Windows)
git clone https://github.com/microsoft/Detours.git
If you don't have a local install of the Vulkan Headers they can be placed in the externals folder with:
git clone https://github.com/KhronosGroup/Vulkan-Headers.git