Remove tile side buffers for client data source tiles (#1496)
Remove tile side buffers for client data source tiles (#1496)

* Remove tile paddings from client data by setting tile buffer on each side to zero for GeoJSONVT option

* set 'tile solid squares' geojson-vt options:

- needed for our renderer, otherwise the untiled solid square may be
  rendered for multiple neighbor tiles

cleeus/tangram-es,cleeus/tangram-es,tangrams/tangram-es,tangrams/tangram-es,quitejonny/tangram-es,tangrams/tangram-es,cleeus/tangram-es,cleeus/tangram-es,cleeus/tangram-es,cleeus/tangram-es,quitejonny/tangram-es,quitejonny/tangram-es,quitejonny/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,quitejonny/tangram-es,quitejonny/tangram-es