Update copyright year.

NOTICE.txt

src/main/java/org/orekit/rugged/api/AlgorithmId.java

src/main/java/org/orekit/rugged/api/BodyRotatingFrameId.java

src/main/java/org/orekit/rugged/api/EllipsoidId.java

src/main/java/org/orekit/rugged/api/InertialFrameId.java

src/main/java/org/orekit/rugged/api/Rugged.java

src/main/java/org/orekit/rugged/api/RuggedBuilder.java

src/main/java/org/orekit/rugged/errors/Dump.java

src/main/java/org/orekit/rugged/errors/DumpManager.java

src/main/java/org/orekit/rugged/errors/DumpReplayer.java

src/main/java/org/orekit/rugged/errors/RuggedException.java

...java/org/orekit/rugged/errors/RuggedExceptionWrapper.java

src/main/java/org/orekit/rugged/errors/RuggedMessages.java

...va/org/orekit/rugged/intersection/BasicScanAlgorithm.java

...rekit/rugged/intersection/ConstantElevationAlgorithm.java

...va/org/orekit/rugged/intersection/IgnoreDEMAlgorithm.java

...org/orekit/rugged/intersection/IntersectionAlgorithm.java

...kit/rugged/intersection/duvenhage/DuvenhageAlgorithm.java

.../orekit/rugged/intersection/duvenhage/MinMaxTreeTile.java

.../rugged/intersection/duvenhage/MinMaxTreeTileFactory.java