Vulkan-Hpp for Skyline

We ran into a rather unique problem with using Vulkan-Hpp in Skyline, that being Android Studio not being able to support analysing files beyond a certain length or size without manually overriding some settings so it could. We did not want this to affect other developers and make setup as easy as possible, so we modified the existing Vulkan-Hpp generator to break up the files in a way that would make individual files smaller and therefore not breaking the file size limits.

We have also packaged in git.patch which is the git diff of the changes made to Vulkan-Hpp. It can be used to recreate the generator from the source repository at https://github.com/KhronosGroup/Vulkan-Hpp/.