Added some useful filters for selectively purging ways and nodes.
Added some useful filters for selectively purging ways and nodes.

Signed-off-by: Brandon Martin-Anderson <e1da00a1d7ab52b964f8bd45a8ebb127db319d49@gmail.com>
brendannee/Bikesy-Backend,brendannee/Bikesy-Backend,jeriksson/graphserver,jeriksson/graphserver,brendannee/Bikesy-Backend,brendannee/Bikesy-Backend,jeriksson/graphserver,brendannee/Bikesy-Backend,jeriksson/graphserver,bmander/graphserver,bmander/graphserver,graphserver/graphserver,graphserver/graphserver,jeriksson/graphserver