Add test case from @oxidase for datastore parameters
Add test case from @oxidase for datastore parameters

oxidase/osrm-backend,yuryleb/osrm-backend,felixguendling/osrm-backend,yuryleb/osrm-backend,Project-OSRM/osrm-backend,oxidase/osrm-backend,Project-OSRM/osrm-backend,bjtaylor1/osrm-backend,yuryleb/osrm-backend,frodrigo/osrm-backend,bjtaylor1/osrm-backend,frodrigo/osrm-backend,oxidase/osrm-backend,frodrigo/osrm-backend,oxidase/osrm-backend,felixguendling/osrm-backend,bjtaylor1/osrm-backend,yuryleb/osrm-backend,Project-OSRM/osrm-backend,Project-OSRM/osrm-backend,felixguendling/osrm-backend,bjtaylor1/osrm-backend,frodrigo/osrm-backend