refactoring main classes

...it/rugged/refining/generators/GroundMeasureGenerator.java

...g/orekit/rugged/refining/metrics/LocalisationMetrics.java

src/tutorials/java/AffinagePleiades/AffinageRugged.java

...utorials/java/AffinagePleiades/AffinageRuggedLiaison.java

src/tutorials/java/AffinagePleiades/InterRefining.java

src/tutorials/java/AffinagePleiades/Refining.java