Howto add a wmsartifact for the maps:

- Add artifact similar to the existing ones in:
    flys-artifacts/src/main/java/de/intevation/flys/artifacts/
- Define facet name in:
    flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FacetTypes.java
- Modify datacage configuration (there is documentation in flys-artifacts/doc):
    flys-artifacts/doc/conf/meta-data.xml
- Define the Factory used in the datacage configuration in:
    flys-artifacts/doc/conf/conf.xml
- Define the facet for the Map:
    flys-artifacts/doc/conf/artifacts/map.xml
- You might also want to add it to the floodmap in winfo:
    flys-artifacts/doc/conf/artifacts/winfo.xml
- Add translations for the datacage elements in:
    flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.java
- English localization:
    flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.properties
- German localization:
    flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants_de.properties