Moved raster package one level up.

.../java/org/orekit/rugged/geotiff/AsterTileUpdaterTest.java

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

src/main/java/org/orekit/rugged/core/BasicScanAlgorithm.java

src/main/java/org/orekit/rugged/core/IgnoreDEMAlgorithm.java

.../org/orekit/rugged/core/duvenhage/DuvenhageAlgorithm.java

...java/org/orekit/rugged/core/duvenhage/MinMaxTreeTile.java

...g/orekit/rugged/core/duvenhage/MinMaxTreeTileFactory.java

.../java/org/orekit/rugged/raster/IntersectionAlgorithm.java

src/main/java/org/orekit/rugged/raster/SimpleTile.java

...main/java/org/orekit/rugged/raster/SimpleTileFactory.java

src/main/java/org/orekit/rugged/raster/Tile.java

src/main/java/org/orekit/rugged/raster/TileFactory.java

src/main/java/org/orekit/rugged/raster/TilesCache.java

src/test/java/org/orekit/rugged/api/RuggedTest.java

...st/java/org/orekit/rugged/core/AbstractAlgorithmTest.java

...t/java/org/orekit/rugged/core/BasicScanAlgorithmTest.java

.../orekit/rugged/core/duvenhage/DuvenhageAlgorithmTest.java

.../orekit/rugged/raster/CheckedPatternElevationUpdater.java

...java/org/orekit/rugged/raster/CliffsElevationUpdater.java

src/test/java/org/orekit/rugged/raster/CountingFactory.java