Move GetTerrainIndex/Info from WorldUtils to Map
Move ClampToWorld from WorldUtils to Map
Move ChooseRandomCell from WorldUtils to Map
Move DistanceToMapEdge from WorldUtils to Map
Move FindTilesInCircle from WorldUtils to Map
Move ChooseRandomEdgeCell from WorldUtils to Map
Merge pull request #5630 from pavlos256/map-helpers

Move map helpers from WorldUtils to Map