Rio-cogeo

* remove useless path translation to pathlib and avoid side effect when using a URL (https://github.com/cogeotiff/rio-cogeo/issues/178)

* drop support for Python 3.5 (https://github.com/cogeotiff/rio-cogeo/issues/173)
* allow pathlib.PurePath object as input and output (https://github.com/cogeotiff/rio-cogeo/issues/173)
* add top-level exports (https://github.com/cogeotiff/rio-cogeo/issues/169)

python
before
from rio_cogeo.cogeo import cog_translate, cog_validate, cog_info
from rio_cogeo.profiles import cog_profiles

now
from rio_cogeo import cog_translate, cog_validate, cog_info, cog_profiles

* switch to `morecantile` and update the web-optimized creation method to better match GDAL 3.2.
* add `zoom_level_strategy` options to match GDAL 3.2 COG driver.
* add `aligned_levels` (cli and api) to select the level of overview to align with the TMS grid.

**Breaking Changes:**
* removed `--latitude-adjustment/--global-maxzoom` option in the CLI
* removed `latitude_adjustment` option in `rio_cogeo.cogeo.cog_translate`
* updated **overview blocksize** to match the blocksize of the high resolution data (instead of default to 128)
* for web-optimized COG, the highest overview level will be aligned with the TMS grid.

* remove `pkg_resources` (https://github.com/pypa/setuptools/issues/510)

* Update max IFD offset to 300 bytes (https://github.com/cogeotiff/rio-cogeo/issues/158)