[AH-869] Return 100 opacity only if opactity isn't set
[AH-869] Return 100 opacity only if opactity isn't set

uhef/Oskari-Routing-frontend,uhef/Oskari-Routing-frontend,uhef/Oskari-Routing-frontend,uhef/Oskari-Routing-frontend,uhef/Oskari-Routing-frontend,uhef/Oskari-Routing-frontend