added drawing api

add GeomBuilder, needs Jts

drawing_api: squashed

drawing_api: use JtsDrawable baseclass

- add makeCircle for testing

drawing_api: cleanups

drawing_api: refactor

drawing_api: use SpatialIndex

drawing_api: optimization + cleanup

drawing_api: VectorLayer

- use VectorLayer for PathLayer

drawing_api: make style builder more consistent with theme api

drawing_api: wip

vtm-extras/src/org/oscim/layers/OsmVectorLayer.java

@@ -1,6 +1,6 @@
 package org.oscim.layers;
 
-import org.oscim.core.BoundingBox;
+import org.oscim.core.Box;
 import org.oscim.core.osm.OsmElement;
 import org.oscim.layers.vector.AbstractVectorLayer;
 import org.oscim.map.Map;
@@ -12,7 +12,7 @@ public class OsmVectorLayer extends AbstractVectorLayer<OsmElement> {
 	}
 
 	@Override
-	protected void processFeatures(Task t, BoundingBox b) {
+	protected void processFeatures(Task t, Box b) {
 
 	}