Add API coverage for javax.xml.validation.Schema*.

API list:
 * javax.xml.validation.Schema.Schema()
 * javax.xml.validation.SchemaFactory.SchemaFactory()
 * javax.xml.validation.SchemaFactory.getFeature(java.lang.String)
 * javax.xml.validation.SchemaFactory.getProperty(java.lang.String)
 * javax.xml.validation.SchemaFactory.newInstance(java.lang.String)
 * javax.xml.validation.SchemaFactory.newInstance(java.lang.String, java.lang.String, java.lang.ClassLoader)
 * javax.xml.validation.SchemaFactory.newSchema(java.io.File)
 * javax.xml.validation.SchemaFactory.newSchema(java.net.URL)
 * javax.xml.validation.SchemaFactory.newSchema(javax.xml.transform.Source)
 * javax.xml.validation.SchemaFactory.setFeature(java.lang.String, boolean)
 * javax.xml.validation.SchemaFactory.setProperty(java.lang.String, java.lang.Object)
 * javax.xml.validation.SchemaFactoryLoader.SchemaFactoryLoader()

Bug: 201404691
Test: atest CtsLibcoreTestCases:org.apache.harmony.tests.javax.xml.parsers.DocumentBuilderFactoryTest#test_setSchemaLjavax_xml_validation_Schema
Change-Id: I79104c4adb1e7deff1c82ceb808df824c0f39f3e
3 files changed