Adding an option to validate children nodes in an array (#219)

without this change it's impossible to assert with response matchers all elements of an array
with this change we're using AssertJs conditions in case the pattern contains [*]

fixes #217

spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/MatchingType.groovy

@@ -39,4 +39,11 @@ enum MatchingType {
 	 * provided regex
 	 */
 	REGEX
+
+	static boolean regexRelated(MatchingType type) {
+		if (type == EQUALITY || type == TYPE ) {
+			return false
+		}
+		return true
+	}
 }

spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/MatchingTypeSpec.groovy

@@ -0,0 +1,22 @@
+package org.springframework.cloud.contract.spec.internal
+
+import spock.lang.Specification
+
+/**
+ * @author Marcin Grzejszczak
+ */
+class MatchingTypeSpec extends Specification {
+	def "should return [#expected] for type [#type]"() {
+		expect:
+			MatchingType.regexRelated(type) == expected
+		where:
+			type                   | expected
+			MatchingType.EQUALITY  | false
+			MatchingType.TYPE      | false
+			MatchingType.REGEX     | true
+			MatchingType.DATE      | true
+			MatchingType.TIME      | true
+			MatchingType.TIMESTAMP | true
+
+	}
+}