Use the NIST publication for better password validation

[Vlix]

@agentultra shared an interesting PDF of the NIST about how to go about handling and enforcing passwords (memorized secrets) and it has some interesting guidelines that make a lot of sense that could be implemented in the Data.Password.Validate module. (I've only really looked at a bit of chapter 5.1, but there're some good things in there)

I'd like to keep this issue open for discussion and coordination when someone wants to pick this up.

[cdepillabout]

It sounds like this could be a good first issue. The amount of modifications that would need to be done in our code-base are probably pretty small (although you would need to take time to understand the recommendations from the PDF).

[Vlix]

I've found a library that might help with allowing Unicode: https://hackage.haskell.org/package/unicode-transforms
Not sure it "normalizes" the given Text to the NIST correct form, but just leaving this here for posterity.