Add <profiles> element for <clover-setup> and <clover-instr>

Enhance Ant tasks by adding new sub-types and attributes:

<clover-setup> <!-- the same for <clover-instr> -->
  <profiles>   <!-- AntCloverProfiles with List<AntCloverProfile> -->
    <profile name="default" coverageRecorder="...">  <!-- copied as CloverProfile to InstrumentationProfileConfig -->
      
    </profile>
    <!-- more profiles possible, but we will handle "default" only right now -->
  </profiles>
</clover-setup>

coverageRecorder

• fixed - default value as now, fixed-size coverage recorder requiring presence of clover.db to read the size
• growable - like for Android, no need to have clover.db
• shared - for Grails app, not only with dynamic size, but also reusing the same instance of recorder if initstring is the same

Parse it on Ant level, pass it to InstrumentationConfig and Instrumenter.