Adding isDefinedAndIsNotDefined test

This test fails because IsNotDefinedExpression doesn't handle negation.

ExistsField.createParsedCondition handles only notPattern (But we need to decide whether notPattern or negate based on the parent condition)
Even if negate == true, PrototypePatternDefImpl.evaluateConstraint always returns false when a value is UNDEFINED_VALUE regardless of operator. We would need special handling?

ReteDumper:

[EntryPointNode(1) EntryPoint::DEFAULT ] on Partition(MAIN)
  [ObjectTypeNode(3)::EntryPoint::DEFAULT objectType=[PrototypeObjectType template=DROOLS_PROTOTYPE] expiration=-1ms ] on Partition(MAIN)
    [AlphaNode(4) constraint=[Constraint for 'expr:ThisPrototypeFieldValue:EXISTS_FIELD:ExtractorPrototypeExpression{ExtractorNode [values=[IdentifierNode [value=meta]]]}' (index: null), ]] on Partition(1) d -1 i -1
      [AlphaNode(5) constraint=[Constraint for 'expr:ThisPrototypeFieldValue:EXISTS_FIELD:ExtractorPrototypeExpression{ExtractorNode [values=[IdentifierNode [value=meta], IdentifierNode [value=headers], IdentifierNode [value=token]]]}' (index: null), ]] on Partition(1) d -1 i -1
        [AlphaTerminalNode(6)] on Partition(1) Ld 0 Li 0
          [RuleTerminalNode(7): rule=r1] on Partition(1) d -1 i -1
  [ObjectTypeNode(2)::EntryPoint::DEFAULT objectType=[ClassObjectType class=org.drools.base.reteoo.InitialFactImpl] expiration=-1ms ] on Partition(MAIN)

kiegroup / drools-ansible-rulebook-integration

Adding isDefinedAndIsNotDefined test #107