Further extending Metadata for Wasser_DE

Adding Publisher information. Still missing entries from WasserDE are:

Missing entries
ERROR
HARVESTING_BFG_HARVESTING_ID
HARVESTING_CONFIRMED
HARVESTING_DEPRECATED
IGNORE_ERROR
IGNORE_FILE_FULLY
ISSHAPESET
KATEGORIE_ID
LAST_CHECKED
LAWA_DOKUMENT_NR
REGION_TYPE_ID
REGION_TYPE_NAME
REPORTING_TYPE_GROUP
REPORTING_TYPE_ID
REPORTING_TYPE_NAME
RICHTLINIE_IDS
SOURCE_KURZ_NAME
SOURCE_REGION_TYPE_ID
STAND
STATUS
TAG_IDS
TAG_LEVEL_IDS
TAG_STATUS_IDS
ZYKLUS_GRUPPE
ZYKLUS_ID
ZYKLUS_NAME