feat: Add files to input and output types

Author: Alan Christie

decoder/job-definition-schema.yaml

@@ -517,6 +517,7 @@ definitions:
         type: string
         enum:
         - file
+        - files
         - molecules-smi
       multiple:
         type: boolean
@@ -562,6 +563,7 @@ definitions:
         type: string
         enum:
         - file
+        - files
       annotation-properties:
         type: object
         additionalProperties: true