adapt the import statements to the recent changes in pycam.Geometry

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@505 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Importers/STLImporter.py

@@ -21,7 +21,9 @@ You should have received a copy of the GNU General Public License
 along with PyCAM.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-from pycam.Geometry import Point, Line, Triangle
+from pycam.Geometry.Point import Point
+from pycam.Geometry.Line import Line
+from pycam.Geometry.Triangle import Triangle
 from pycam.Geometry.PointKdtree import PointKdtree
 from pycam.Geometry.TriangleKdtree import TriangleKdtree
 from pycam.Geometry.Model import Model