Add normalized term list input form

[M-C-McGrath]

Users need a way to input a normalized term list input form. This form should output a hash/dictionary of the following format:

{
  "Canonical Name" : [
      "Name Variant 1",
      "Variant 2",
      "var 3"]
}

This is useful for normalizing multiple name variants or grouping documents with topically-related but different keywords. Users should be able to enter the keys they want to show up as the categories, and then for each key enter an unlimited # of terms documents should be checked for. Each of these lists of terms acts as a normal term list that Catalyst can extract, except instead of being tagged with the terms themselves it is tagged with the overall key associated with the terms.