Takes optimized filter object from shaver.styleToFilters and returns c++ filters for shave.
Parameters
style
Object Mapbox GL Style JSON
Examples
var shaver = require('@mapbox/vtshaver');
var style = require('/path/to/style.json');
var filters = shaver.styleToFilters(style);
console.log(filters);
// {
// "poi_label": ["!=","maki","cafe"],
// "road": ["==","class","path"],
// "water": true,
// ...
// }