Add min resolution to produce reasonable tile zoom levels
Add min resolution to produce reasonable tile zoom levels

This commit adds a minimum resolution of 1 cm to prevent generating
tiles at too great of zoom levels.

azavea/raster-foundry,aaronxsu/raster-foundry,azavea/raster-foundry,aaronxsu/raster-foundry,aaronxsu/raster-foundry,azavea/raster-foundry,azavea/raster-foundry,azavea/raster-foundry,raster-foundry/raster-foundry,raster-foundry/raster-foundry,aaronxsu/raster-foundry,raster-foundry/raster-foundry