Updating navmesh locally in an area around the player

[h8man]

@DrVanillaCookie

If you plan on expanding the plugin, might I suggest a feature? Updating navmesh locally, like only in an area around the player. I think built in Navmesh has something like this:

https://github.com/Unity-Technologies/NavMeshComponents/blob/master/Assets/Examples/Scripts/LocalNavMeshBuilder.cs