Enhancement: Add option to silently fail if no ts config file is found

[haikyuu]

One use case for this is integrating this library in a framework. I can't expect everyone to have a tsconfig file.

I'll be actually working on that. It should be as simple as:

• adding an option to the API
• passing resolveWithEmptyIfConfigNotFound to tsconfck
• returning early from the plugin when that's the case