This supports USA for Photon and Tigerline

This added Tigerline and USA States to Photon
thinking about people who don't want to use tiger: for every entry (more than 100 millions) there will be a single db query. what about performance? it already takes a lot of time to import the entire osm data ;-(
I guess it is better to introduce a command line argument to enable tiger imports...

btw. do you know how nominatim handles continuous updates of tiger, do they exist?