Make AbstractSubsystemBaseTest#testSchemaOfSubsystemTemplates opt-in as opposed to flooding reports with @Ignored tests

testSchemaOfSubsystemTemplates[8](org.jboss.as.clustering.infinispan.subsystem.SubsystemParsingTestCase)  Time elapsed: 0.052 sec  <<< FAILURE!
java.lang.AssertionError: error: cvc-complex-type.2.4.b: The content of element 'subsystem' is not complete. One of '{"urn:jboss:domain:infinispan:4.0":cache-container}' is expected.
	at org.junit.Assert.fail(Assert.java:88)
	at org.jboss.as.subsystem.test.SchemaValidator$1.error(SchemaValidator.java:73)
	at org.apache.xerces.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:135)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:394)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:282)
	at org.apache.xerces.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:481)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3571)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.elementLocallyValidComplexType(XMLSchemaValidator.java:3508)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.elementLocallyValidType(XMLSchemaValidator.java:3434)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.processElementContent(XMLSchemaValidator.java:3336)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.handleEndElement(XMLSchemaValidator.java:2383)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.endElement(XMLSchemaValidator.java:894)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(XMLNSDocumentScannerImpl.java:673)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1645)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:875)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:798)
	at org.apache.xerces.jaxp.validation.StreamValidatorHelper.validate(StreamValidatorHelper.java:186)
	at org.apache.xerces.jaxp.validation.ValidatorImpl.validate(ValidatorImpl.java:129)
	at javax.xml.validation.Validator.validate(Validator.java:124)
	at org.jboss.as.subsystem.test.SchemaValidator.validateXML(SchemaValidator.java:123)
	at org.jboss.as.subsystem.test.SchemaValidator.validateXML(SchemaValidator.java:101)
	at org.jboss.as.subsystem.test.AbstractSubsystemBaseTest.testSchemaOfSubsystemTemplates(AbstractSubsystemBaseTest.java:144)
	at org.jboss.as.clustering.infinispan.subsystem.SubsystemParsingTestCase.testSchemaOfSubsystemTemplates(SubsystemParsingTestCase.java:130)


Results :

Failed tests:
  SubsystemParsingTestCase.testSchemaOfSubsystemTemplates:130->AbstractSubsystemBaseTest.testSchemaOfSubsystemTemplates:144 error: cvc-complex-type.2.4.b: The content of element 'subsystem' is not complete. One of '{"urn:jboss:domain:infinispan:4.0":cache-container}' is expected.