Deploy ICE server, test STUN with it

[two-one-five]

Domain-server keeps trying to put public key to metaverse API because it gets a failure from the ICE server.

ICE Server URL is located in DomainServer.cpp, it needs to not be hardcoded on the client but rather requested from the Metaverse API.

[two-one-five]

Next steps after that are to confirm that domain servers are connecting and that we can connect to it.

1. We need to add a database connection.
2. We need to make the domain-server setup work appropriately with the Metaverse API for all setup steps.
3. We need to make an administration back-end for the Metaverse API.