feat(node): add onprem.database.Druid

diagrams/onprem/database.py

@@ -32,6 +32,10 @@ class Dgraph(_Database):
     _icon = "dgraph.png"
 
 
+class Druid(_Database):
+    _icon = "druid.png"
+
+
 class Hbase(_Database):
     _icon = "hbase.png"
 

docs/nodes/onprem.md

@@ -60,6 +60,7 @@ Node classes list of onprem provider.
 - **diagrams.onprem.database.Couchbase**
 - **diagrams.onprem.database.Couchdb**, **CouchDB** (alias)
 - **diagrams.onprem.database.Dgraph**
+- **diagrams.onprem.database.Druid**
 - **diagrams.onprem.database.Hbase**, **HBase** (alias)
 - **diagrams.onprem.database.Influxdb**, **InfluxDB** (alias)
 - **diagrams.onprem.database.Janusgraph**, **JanusGraph** (alias)