Add managed lane nodes and links in the registry

[i-am-sijia]

When creating the physical managed lane facilities in the model network, Network Wrangler assigns managed node id = gp node id + 500,000 (scalar), and managed link id = gp link id + 1,000,000 (scalar). See code here: https://github.com/wsp-sag/network_wrangler/blob/867753d5629fbd66049b87e07bfe428e2d7bcc8d/network_wrangler/roadway/model_roadway.py#L16-L26

We should reserve the IDs of the managed links and nodes as well. So that they don't conflict with any new nodes and links.