fix: Cleans up Point checks and removes statics (#966)

- [X] Removes static freezing/unfreezing. Use other tools for this.
- [X] Cleans up IPoint3D allocations
- [X] Removes IPoint3D constructors since the compiler may not optimize the constructor path and allow allocations.


Note: Instead of `new Point3D(m)`, do something like `new Point3D(m.Location)`. Sorry for the inconvenience. In the long run this will prevent abuse of hot paths that will cause performance issues.

Projects/UOContent/Multis/Boats/BaseBoatDeed.cs

@@ -176,7 +176,7 @@ namespace Server.Multis
                 {
                     if (ip is Item item)
                     {
-                        ip = item.GetWorldTop();
+                        ip = from;
                     }
 
                     var p = new Point3D(ip);