* add `_tile_matrices_idx: Dict[str, int]` private attribute to improve `matrices` lookup * change `xy_bounds()` and `bounds()` methods to avoid calculation duplication
6.0.0
* remove `_geographic_crs` private attribute in `TileMatrixSet` model **breaking change** * use `crs.geodetic_crs` property as `geographic_crs` **breaking change**