feat(node): add dataform (#763)

diagrams/saas/analytics.py

@@ -8,6 +8,10 @@ class _Analytics(_Saas):
     _icon_dir = "resources/saas/analytics"
 
 
+class Dataform(_Analytics):
+    _icon = "dataform.png"
+
+
 class Snowflake(_Analytics):
     _icon = "snowflake.png"
 

docs/nodes/saas.md

@@ -25,6 +25,8 @@ Node classes list of saas provider.
 
 ## saas.analytics
 
+<img width="30" src="/img/resources/saas/analytics/dataform.png" alt="Dataform" style="float: left; padding-right: 5px;" >
+**diagrams.saas.analytics.Dataform**
 
 <img width="30" src="/img/resources/saas/analytics/snowflake.png" alt="Snowflake" style="float: left; padding-right: 5px;" >
 **diagrams.saas.analytics.Snowflake**