Refactor Irregular Querent

* Do not use Vectorizor so we can remove its
  `_eval` method use
* Factor down methods construction into mixins in
  the same style as Querent
Formatting
Remove last dependencies to QuerentTenseMethodsVectorizer

This also removes the last `_eval` and
`define_method` magic!!!!  Metaprogramming free!
Remove final loose TODOs
Extract class SupineInferrer
Updated todo file