map FeatureClass and FeatureCode to the pelias taxonomy

[hkrishna]

Using feature Class and/or feature code we can categorize geonames

• featureClass A is an admin boundary for instance
• featureClass P is a populated place

Based on the featureClass, we have a bunch of featureCodes we can make use of .. for example:

• REST: featureCode that denotes a given point is a restaurant
• AIRP: Airport
• BLDG: Building

We could use this in conjunction to pelias/openstreetmap#33