Extend existing coverage to support two new fields:

• branches_to_cover
• branches_covered

Values should be null for coverage using dbms_profiler

For coverage in 12.2 we need to convert block coverage into line/branches coverage to match generic test coverage data for Sonar.
https://docs.sonarqube.org/display/SONAR/Generic+Test+Data

htlm coverage reproter should be updated to support yellow color for branches not covered in 100% for line.

htlm coverage reproter should be updated to show covered/to_cover branches indicator in the report when there is more than 1 branch.