Goals for this task:

1. Implement visit(ExpressionEncStrEndsWith*) in our IntentionPreVisitor specialization. 
2. Implement visit(ExpressionEncStrStartsWith*) in IntentionInVisitorBase.
3. Implement visit(ExpressionEncStrStartsWith*) in IntentionPostVisitorBase.

Performing the above items should result in the constant literal value in ExpressionEncStrStartsWith being replaced with the placeholder.

Testing:

1. Sanity check test, can we add a test in fle/agg.js or fle/find.js which checks that we can't use $encStrEndsWith  a FLE1 encryption schema?
2. Expression_analysis_test.cpp: Add test to EvaluatedExpressionsCorrectlyReturnNotEncrypted which checks that new expressions return an unencrypted value (i.e evaluates to bool).
3. Fle_match_expression_test.cpp: Here we can add unit tests for checking that ExpressionEncStrEndsWith gets replaced with a placeholder by FLEMatchExpression.

We can add query analysis jstests in a follow-up ticket.