[CMake] Adding Platform files

[Tim Gallagher]

Hi,

I have a folder inside my code repository we use to store custom modules and that folder was added to the search path. Inside that folder I added one called Platform/ and put a custom platform file in there. But CMake says it can't find the platform file. 

Is it possible to add custom platforms without having to put them in the CMake install tree?

Thanks,

Tim