woodbri fix proposal for persistant pgt_onedeport() results

>  * After each query I have to restart PostgreSQL as last query result
seems to be stuck "somewhere" (memory?) and all subsequent queries
return the very same result;

You might need to change the pgr_vrponedepot sql wrapper to volatile if
it is not.

pgrouting/src/vrp_basic/sql/routing_vrp.sql

should say:

LANGUAGE c VOLATILE STRICT;