Sonarplugins 3407

This pull contains the following new functionality
1. The admin can define the name of the profile to be used for ReSharper (sonar.resharper.profile)
2. You can include the custom severities of ReSharper. To do this, export the settings, copy paste the file in the customseverities ( sonar.resharper.customSeverities.definition)
3. If you'd  rather not do that, because you want to hide these settings, or do not like to copy paste, you may also refer to the exported file. (sonar.resharper.customSeverities.path)
Obviously this means you have to put it somewhere on the sonar server. The flexibility is there for you

3 is executed before 2

Testcoverage is around 80%

Note: ReSharper creates files with the notorious BOM, this is taken care of as well.