Add Client Side Interpolation of Movement

[johnnyapol]

https://developer.valvesoftware.com/wiki/Latency_Compensating_Methods_in_Client/Server_In-game_Protocol_Design_and_Optimization

This would allow us to "smooth" out movements on the client when their connection is poor or the server is lagging behind, helping to ensure a still playable experience.

[DamienVesper]

Implement some copy of serverside logic to clientside logic instead of just using static positions, as well as queue snapshots every 100ms or so to check the client and update it accordingly. If the client is on track, will be a smooth transition. If not, gameplay will be similar to teleportation. Interval can be increased but would not recommend any number above 300ms.