Hardcode GDAL_DATA and PROJ_LIB so they can be used by wflow initiali…

…ze()

Refs eWaterCycle/ewatercycle#268

wflow/Dockerfile

@@ -10,5 +10,7 @@ WORKDIR /data/input
 ENV BMI_MODULE=wflow.wflow_bmi
 ENV BMI_CLASS=wflowbmi_csdms
 ENV BMI_PORT=55555
+ENV GDAL_DATA=/opt/conda/envs/wflow/share/gdal
+ENV PROJ_LIB=/opt/conda/envs/wflow/share/proj
 ENTRYPOINT ["/opt/conda/envs/wflow/bin/run-bmi-server"]
 EXPOSE 55555