Indexing of Vector Tiles (Clipping Justification)
This pull-request provides the ability to display vector tile trees containing leaves at different levels of detail (LOD) based on data density. This requires clipping tiles when zoomed in beyond a physically present leaf and using an index to determine tile presence.
The goal is to efficiently cook tiles and still maintain a high level of data precision in vector tiles. We can achieve this by limiting the cooking of tiles to a satisfactory LOD in less geometrically dense areas. On the consumer side, clipping can be used to clip larger tiles to fit a more precise LOD as needed. This methodology also provides over-zooming of tiles beyond the LOD limit of the current Vector Tile specification.