transpilation process drops any non code files

[nvdk]

It seems our transpilation process drops any non code files. This is unexpected behavior from a developer perspective and breaks applications.

Use cases:

• In notulen-prepublish-service we generate html files based on hbs templates. the hbs files can now not be found in the expected location
• generic: presets could be loaded from a json file instead of js file
• generic: a default config might be present in a ttl file

I've encountered this before and it seems somewhere between 1.4.0 and 1.7.0 this has regressed. I believe this was solved in #27 and those changes got dropped somewhere. I'm curious as to what the reason could be.

#33 is related but seems broader than this. I believe good default behavior would be to copy all files expect ignored files. In any case it doesn't document a solution, rather says there should be one.