Imports of package maptile

PathSynopsis
github.com/paulmach/orb
github.com/paulmach/orb/geojsonPackage geojson is a library for encoding and decoding GeoJSON into Go structs using the geometries in the orb package.
github.com/paulmach/orb/internal/mercator
mathPackage math provides basic constants and mathematical functions.
math/bitsPackage bits implements bit counting and manipulation functions for the predeclared unsigned integer types.