Tippecanoe

* Add --clip-polygon-file and --feature-filter-file options to tippecanoe-overzoom

* Add --clip-bounding-box and --clip-polygon options to tippecanoe-overzoom

* Raise tippecanoe-decode limit on the size of individual tiles

* Performance improvements to tippecanoe-overzoom with attribute exclusion

* Fix crash when the first bin gets clipped away

* Adds `--no-tile-compression` option to `tippecanoe-overzoom`
* Make `tippecanoe-overzoom` clip the output tile to the tile buffer after assigning points to bins
* Adds `--include`/`-y` option to `tippecanoe-decode` to decode only specified attributes
* Cleans up some inconsistent handling of variable tile extents in overzooming code
* Speeds up overzooming slightly in `tile-join` by doing less preflighting to discover which child tiles contain features