Follow-up on HSEARCH-3197 Pull Request Sent .

On top of the simple syntax introduced in HSEARCH-3197 Pull Request Sent , we would allow users to define the number of "should" clauses required to match conditionally, based on the total number of should clauses. For example something we want to be able to express is "if there are 2 clauses or less, require all clauses to match; if there are more, require 90% to match".