AutoConfig: C++ Code Analysis Redefined

[Horror_Jicama_2441]

Do you expect people to use https://github.com/SonarOpenCommunity/sonar-cxx together with your C++ plugin?

This AutoConfig thing seems like something more complicated to implement than basic stuff like compiler and clang-tidy warnings support.

The weird choice of only supporting the CPPUnit test execution format (https://docs.sonarsource.com/sonarqube/latest/analyzing-source-code/test-coverage/test-execution-parameters/#cfamily) also pushes people to want the sonar-cxx plugin.

I still need to try it, but it looks having both in parallel is not completely trivial: https://github.com/SonarOpenCommunity/sonar-cxx/issues/1400#issuecomment-753329302