Provide All Alternate Number Formats regardless of Enabled Language Extensions

[drsooch]

Currently, the alternate number format plugin only suggests formats when the Language Extension is enabled.

So for example, with Haskell2010 set as the default language, the literal 15 will provide 0xF and 0o17 as alternatives.

With BinaryLiterals enabled the literal 15 will provide 0xF, 0o17, and 0b1111.

Instead the provided alternatives should span all possible formats and add the language extension if not already enabled.

[michaelpj]

Maybe we can include a note in the code action title when we need an extension, "Convert to 0xF (needs BinaryLiterals)" or something.