Make the fix for the station adder optional

steps/identify_issues.cwl

 id: identify_issues
 label: Identify Known issues
 class: CommandLineTool
-cwlVersion: v1.0
+cwlVersion: v1.2
 hints:
   - class: DockerRequirement
     dockerPull: git.astron.nl:5000/ldv/ldv-images/lofar-legacy:latest
@@ -12,7 +12,11 @@ inputs:
     type: Directory
     inputBinding:
       position: 1
-
+  - id: is_long_baseline
+    type: boolean?
+    inputBinding:
+      position: 2
+      prefix: '--is_long_baseline'
 outputs:
   - id: issue_list
     type: string[]