Now they support both types of file names

So now they can support whatever has been registered

This puts less responsibility on the provider libraries and more on the initial bootstrap process. Renamed IExternalConfiguration to IExternalProviderConfiguration

Added loads of tests to cover various bits I refactored or added

Added tests for all of the localization parsers, I will then implemented the resx one afterwards

We can now read downloaded resx strings. This was way more awkward than I imagined it to be, I will rip the parts of the lib I referenced to prevent the dependency!

These tests were broken from refactors so theyre now working again

I realised that resx would need its own custom file name logic so I refactored the config to have an object for the filetype details. This has had some knock on effects but means it should be easier supporting unique file types in the future.

The version formatting didn't apply to primary cultures and the culture checking didn't work properly despite the unit tests passing so I have updated the tests to be flakier and fixed the offending code (using ==). Added resx files for external demonstration

There is now an example of config for each type of file

I have been neglecting these so here are some for the most used methods