Change import in SpotTrackIDFeatureComputer from io.humble.ferry.Atom…

…icInteger to java.util.concurrent.atomic.AtomicInteger;

* The import of io.humble.ferry.AtomicInteger creates an unnecessary dependency on humble video library
* The java.util.concurrent.atomic.AtomicInteger which is part of java is sufficient in this this class

src/main/java/org/mastodon/mamut/feature/SpotTrackIDFeatureComputer.java

@@ -43,7 +43,7 @@
 import org.scijava.plugin.Parameter;
 import org.scijava.plugin.Plugin;
 
-import io.humble.ferry.AtomicInteger;
+import java.util.concurrent.atomic.AtomicInteger;
 
 @Plugin( type = MamutFeatureComputer.class )
 public class SpotTrackIDFeatureComputer implements MamutFeatureComputer