Feature request: support subdir regex?

[devmotion]

In KernelFunctions.jl we use separate project environments for all examples. The examples are contained in directories examples/first_example/, examples/second_example/ etc. It seems currently one has to add all directories to CompatHelper.yml manually. It would be very convenient if one could just use a regex such as examples/*/ (and maybe even examples/**/ for recursive subdirectories).