Add documentation for Snowflake Streaming

docs/content/_data/config/pipes/snowflake/streaming.yaml

@@ -0,0 +1,21 @@
+output:
+  type: com.amadeus.dataio.pipes.snowflake.streaming.SnowflakeOutput
+  fields:
+  - name: Duration
+    mandatory: "No"
+    description: Sets the trigger for the stream query. Controls the trigger() Spark function.
+    example: Duration = "60 seconds"
+  - name: Timeout
+    mandatory: "Yes"
+    description: Controls the amount of time before returning from the streaming query, in hours. It can be a String or an Int.
+    example: Timeout = 24
+  - name: Mode
+    mandatory: "Yes"
+    description: The Spark Structured Streaming output mode.
+    example: Mode = "complete"
+    default: append
+  - name: AddTimestampOnInsert
+    mandatory: "No"
+    description: Add a column named "timestamp" containing the current timestamp at the start of query evaluation
+    example: AddTimestampOnInsert = "true"
+    default: false