message: java core: Add hamcrest dependency.
diff: <orderEntry type="jdk" jdkName="1.8" jdkType="JavaSDK" />
  <orderEntry type="sourceFolder" forTests="false" />
  <orderEntry type="library" scope="TEST" name="Gradle: junit:junit:4.12" level="project" />
  + <orderEntry type="library" scope="TEST" name="Gradle: org.hamcrest:hamcrest-core:1.3" level="project" />
  </component>
  </module>
  