* remove python 3.6 supports (related to morecantile/pyproj update)
titiler.core
* update `rio-tiler/morecantile` requirement (>=3.0)
* remove `utils.bbox_to_feature` (replaced by geojson_pydantic native function `Feature(geometry=Polygon.from_bounds(*bounds), properties=info)`)
* remove `utils.data_stats` (replaced by rio-tiler new statistics method)
* remove `metadata` endpoints **breaking API**
* update `statistics` endpoints with histogram options
* update `statistics` endpoint responses **breaking API**
* remove `band_expression` in `BandsExprParams` dependency **breaking API**
* remove `morecantile` requirement definition in setup.py and defers to rio-tiler supported version
* update `titiler.core.dependencies.DefaultDependency` (allows dict unpacking and remove `.kwargs`) **breaking API**
* use standard for List in QueryParameter (e.g `bidx=1&bidx=2&bidx` instead of `bidx=1,2,3`) **breaking API**
* add `asset_bidx` query parameter in replacement of `bidx` in MultiBaseFactory dependencies and switch to new format: `{asset name}|{bidx,bidx,bidx}` **breaking API**
* update `asset_expression` to the new format: `{asset name}|{expression}` (e.g `data|b1+b2`) **breaking API**
* update `assets` QueryParameter to List (e.g `assets=COG&assets=Data`) **breaking API**
* update `bands` QueryParameter to List (e.g `bands=B01&bands=B02`) **breaking API**
* split `RenderParams` dependency into:
* `PostProcessParams`: `rescale` and `color_formula` parameters
* `ImageRenderingParams`: `return_mask`
* add `process_dependency` attribute in `BaseTilerFactory` (defaults to `PostProcessParams`)
* use `resampling` alias instead of `resampling_method` for QueryParameter **breaking API**
* defaults to available assets if `assets` option is not provided for `MultiBaseTilerFactory` info and statistics endpoints.
* defaults to available bands if `bands` option is not provided for `MultiBandsTilerFactory` info and statistics endpoints.
* better output models definition
* keep `bounds`, `minzoom` and `maxzoom` in `/info` response
* remove `dataset` in `/info` response to better follow the Info model
* add `/statistics` endpoint by default
titiler.mosaic
* update `cogeo-mosaic` requirement (>=4.0)
* update response from `/info` endpoint to match the model.
titiler.application
* update viewers to match changes in titiler.core endpoints