Tile Pack Batches

Nobody has claimed this yet.

Mapbox iOS SDK hints that it may be possible to customize the batch sizing of tile packs. I would like to create a batch for 11-12 since I don't need >=13 and it's throwing me over the 750 limit.

` The zoom leveling scheme for the tile batches can be defined in Tile JSON, otherwise the default scheme is used...`

```swift
@property (nonatomic, readonly, nonnull, copy) NSString *styleURI;

/**
* Minimum zoom level for the tile package.
*
* Note: the implementation loads and stores the loaded tiles
* in batches, each batch has a pre-defined zoom range and it contains
* all child tiles within the range. The zoom leveling scheme for the tile
* batches can be defined in Tile JSON, otherwise the default scheme is used:
* - Global coverage: 0 - 5
* - Regional information: 6 - 10
* - Local information: 11 - 14
* - Streets detail: 15 - 16
*
* Internally, the implementation maps the given tile pack zoom range
* and geometry to a set of pre-defined batches to load, therefore
* it is highly recommended to choose the `minZoom` and `maxZoom` values
* in accordance with the tile batches zoom ranges (see the list above).
*/
```

No repository file, test, or implementation entry point is identified in the issue. Start by reviewing the Tile JSON specification and the referenced Mapbox iOS SDK behavior, then determine whether customizable zoom batch ranges belong in the specification; done should be a decided, documented scope for supporting the requested 11–12 batch.

Written by the indexing model from the issue text.