[2.x] Allow Role's $name and $description to be translated

[crynobone]

I'm not sure whether this should be considered as a breaking change. But this will avoid loading translation early in the request lifecycle and instead only require it to be translated when returning a response.

[driesvints]

Bit torn. I see what you're trying to do but it doesn't feels right to instantiate the app in a value object.

[taylorotwell]

This could potentially lead to weird situations where the user is able to name roles but it happens to match a translated string in the language files, etc. I think best to just let the user override the method if they want.

[taylorotwell]

Hmm, on second thought this change could be necesary.