Provide support for BullseyeCoverage

BullseyeCoverage is a code coverage tool made by Bullseye Testing Technology.

This patch replace the old patch http://jira.codehaus.org/browse/SONARPLUGINS-1585

1) Now there is Junit unit test for the BullseyesCoverage sensor.
BullseyesCoverage was run on The sample cpp projet.
The JUnit unit test use the BullseyesCoverage output.

2) This patch is usable on sonar cxx svn trunk (24/April/2012)

3) Now use CxxUtils.LOG like other sensors.

Properties used :
<sonar.cxx.bulleyescoverage.reportPath>

<sonar.cxx.bullseyecoverage.command>

If the property is not define in pom.xml file, the sensor will look in :
bullseyecoverage-reports/bullseyecoverage-result-*.xml