Fix unit conversion of module default values

This solves #50 (closed).

I corrected Units::convert() to Units::get() in the constructors of all of the following modules:

• [AnalysisCLICpix]
• [AnalysisDUT]
• [AnalysisEfficiency]
• [Clustering4D]
• [DUTAssociation]
• [EventLoaderATLASpix]
• [FileReader]
• [ImproveReferenceTimestamp]
• [Metronome]
• [Prealignment]
• [TestAlgorithm]
• [Tracking4D]
• [TrackingSpatial]