Updated CS identity from CS Systèmes d'Information to CS GROUP

...rg/orekit/rugged/raster/VolcanicConeElevationUpdater.java

...ava/org/orekit/rugged/refraction/MultiLayerModelTest.java

...t/java/org/orekit/rugged/utils/ExtendedEllipsoidTest.java

src/test/java/org/orekit/rugged/utils/GeodeticUtilities.java

.../org/orekit/rugged/utils/NormalizedGeodeticPointTest.java

...org/orekit/rugged/utils/RoughVisibilityEstimatorTest.java

...org/orekit/rugged/utils/SpacecraftToObservedBodyTest.java

src/tutorials/java/fr/cs/examples/DirectLocation.java

src/tutorials/java/fr/cs/examples/DirectLocationWithDEM.java

src/tutorials/java/fr/cs/examples/InverseLocation.java

.../java/fr/cs/examples/refiningPleiades/GroundRefining.java

...s/java/fr/cs/examples/refiningPleiades/InterRefining.java

...orials/java/fr/cs/examples/refiningPleiades/Refining.java

...finingPleiades/generators/GroundMeasurementGenerator.java

...efiningPleiades/generators/InterMeasurementGenerator.java

...r/cs/examples/refiningPleiades/generators/Measurable.java

...ava/fr/cs/examples/refiningPleiades/generators/Noise.java

...r/cs/examples/refiningPleiades/metrics/DistanceTools.java

...xamples/refiningPleiades/metrics/LocalisationMetrics.java

...va/fr/cs/examples/refiningPleiades/models/OrbitModel.java