Once SPM-2880 delivers the FLEFindTextPayload, we will be able to finish the server rewrite work for $encStrNormalizedEq.

Goals for this task:

• Implement TextSearchPredicate::generateTags() for ExpressionEncStrNormalizedEq.
  Implement ExpressionEncStrNormalizedEq::evaluate() (this is our runtime evaluation during a column scan).
• Perform end to end testing of $encStrNormalizedEq, in supported read commands:
  • Add to existing test file created for $encStrStartsWith (i.e fle2/text_seach_end_to_end.js