Branch coverage percentage differs between SonarQube and Quality-time

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SonarQube calculates (see https://docs.sonarqube.org/latest/user-guide/metric-definitions/):

Condition coverage = (CT + CF) / (2*B)
where

• CT = conditions that have been evaluated to 'true' at least once
• CF = conditions that have been evaluated to 'false' at least once
• B = total number of conditions

And Quality-time calculates: uncovered conditions/total number of conditions.

Unfortunately, the CT and CF metrics are not available in the SonarQube API.

Proposed solution: for the percentage scale of the branch coverage metric, use the percentage from SonarQube (instead of calculating it) and for the count scale use the uncovered conditions (same as now).