Merge branch 'ApplyBeam' into 'master'

Add ApplyBeam

See merge request eosc/lofar-cwl!17

steps/DP3.ApplyBeamStepGenerator.cwl

+#!/usr/bin/env cwl-runner
+
+class: Workflow
+cwlVersion: v1.0
+id: applybeam_step_generator
+
+inputs:
+  - id: steps
+    type: Any[]?
+    default: []
+  - id: step_name
+    type: string
+    doc: unique name for the step
+    default: applybeam
+
+  - id: direction
+    type: string?
+    doc: A RA/Dec value specifying in what direction to correct the beam. See phaseshift.phasecenter for syntax. If empty, the beam is corrected in the direction of the current phase center. 
+  - id: onebeamperpatch
+    type: string?
+    doc: |
+      Compute the beam only for the center of each patch
+      (saves computation time, but you should set this to false for large
+      patches). 
+      In the ApplyBeam step, this setting does not make sense 
+      (but it does if the applybeam is part of predict, ddecal, gaincal,
+      h5parmpredict, etc.). 
+      Generally, FALSE is the right setting for this option. 
+      The default has changed to false in a recent (Nov 2018) version. 
+  - id: usechannelfreq
+    type: boolean?
+    doc: |
+      Compute the beam for each channel of the measurement set separately.
+      This is useful for merged / concatenated measurement sets.
+      For raw LOFAR data you should set it to false,
+      so that the beam will be formed as in the station hardware.
+      Also, setting it to false is faster.
+      
+  - id: updateweights
+    type: boolean?
+    doc: |
+      Update the weights column, in a way consistent with
+      the weights being inverse proportional to the autocorrelations
+      (e.g. if 'autoweights' was used before).
+
+  - id: invert
+    type: boolean?
+    doc: |
+      Invert the corrections, to correct the data. Default is true.
+      If you want to corrupt the data, set it to 'false'
+     
+  - id: beammode
+    
+    type:
+      type: enum
+      symbols:
+       - array_factor
+       - element
+       - default
+    doc: |
+      Beam mode to apply, can be “array_factor”, “element” or “default”.
+      Default is to apply both the element beam and the array factor. 
+    
+    
+outputs:
+  - id: augmented_steps
+    outputSource:
+      - DP3_GenericStep/augmented_steps
+    type: Any[]
+steps:
+  - id: DP3_GenericStep
+    in:
+      - id: step_type
+        default: 'applybeam'
+      - id: step_id
+        source: step_name
+      - id: steps
+        source: steps
+      - id: parameters
+        valueFrom: $(inputs)
+
+      - id: direction
+        source: direction
+      - id: onebeamperpatch
+        source: onebeamperpatch
+      - id: usechannelfreq
+        source: usechannelfreq
+      - id: updateweights
+        source: updateweights
+      - id: invert
+        source: invert
+      - id: beammode
+        source: beammode
+
+
+#-------------------------------
+
+    out:
+      - augmented_steps
+    run: ../steps/DP3.GenericStep.cwl
+requirements:
+  - class: StepInputExpressionRequirement
+  - class: InlineJavascriptRequirement
+  - class: MultipleInputFeatureRequirement