Optical Controller component:

- Pre-merge cleanup

src/opticalcontroller/dijsktra.py

@@ -12,6 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# TODO: migrate to NetworkX:
+# https://networkx.org/documentation/stable/index.html
+# https://networkx.org/documentation/stable/reference/algorithms/shortest_paths.html
+
 import sys
 
 class Vertex: