Stefan Jaud

After #339 is merged this should be possible to solve.

Additional [docu](https://codeql.github.com/docs/codeql-language-guides/codeql-for-cpp/).

Suggestion: have a function within `GeomSettings()` that then links to whatever library / function we decide for. But the students can already start implementing.

There are a lot of good [reads](http://realtimecollisiondetection.net/blog/?p=89) on the webs. I still think that the precision provided in the IFC file - see attribute `Precision` [here](https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC1/HTML/link/ifcgeometricrepresentationcontext.htm) - should be used...

@Elvira2227 : now that #303 is merged, this issue can be addressed: - try and find such comparison as stated above - use `areEqual` with corresponding parameters

Goes in hand with #324 .