Added `dp3_apply_delay.cwl`.

This step takes an h5 solution file and applies it to the given
measurement set. In practice, the solution file contains the
gain solutions of `steps/copyST_gains.cwl`, while the measurement
set is the concatenated output of the step `phaseup_concatenate`
in `workflows/phaseup-concat.cwl`.

steps/dp3_apply_delay.cwl

+cwlVersion: v1.2
+class: CommandLineTool
+id: dp3_apply_delay
+label: dp3_apply_delay
+
+baseCommand: DP3
+
+arguments:
+    - 'steps=[applyphase,applyamp,count]'
+    - applyphase.type=applycal
+    - applyphase.parmdb=$(inputs.h5parm.path)
+    - applyphase.solset=$(inputs.solset)
+    - applyamp.type=applycal
+    - applyamp.parmdb=$(inputs.h5parm.path)
+    - applyamp.solset=$(inputs.solset)
+
+inputs:
+    - id: msin
+      type: Directory
+      doc: Input measurement set.
+      inputBinding:
+        position: 0
+        prefix: msin=
+        separate: false
+    - id: h5parm
+      type: File
+      doc: Delay calibrator solution set.
+    - id: solset
+      type: string?
+      default: sol001
+      doc: solution set in the h5parm to be used.
+    - id: numthreads
+      type: int?
+      default: 5
+      inputBinding:
+        prefix: numthreads=
+        separate: false
+    - id: msin_datacolumn
+      type: string?
+      default: DATA
+      inputBinding:
+        prefix: msin.datacolumn=
+        separate: false
+        shellQuote: false
+    - id: baseline
+      type: string?
+      default: '*&'
+      inputBinding:
+        prefix: msin.baseline=
+        separate: false
+    - id: msout_datacolumn
+      type: string?
+      default: CORRECTED_DATA
+      inputBinding:
+        prefix: msout.datacolumn=
+        separate: false
+    - id: storagemanager
+      type: string?
+      default: dysco
+      inputBinding:
+        prefix: msout.storagemanager=
+        separate: false
+    - id: fullresflags
+      type: boolean?
+      default: False
+      inputBinding:
+        prefix: msout.writefullresflag=
+        separate: false
+    - id: phase_correction
+      type: string?
+      default: phase000
+      inputBinding:
+        prefix: applyphase.correction=
+        separate: false
+    - id: phase_weights
+      type: boolean?
+      default: False
+      inputBinding:
+        prefix: applyphase.updateweights=
+        separate: false
+    - id: amplitude_correction
+      type: string?
+      default: amplitude000
+      inputBinding:
+        prefix: applyamp.correction=
+        separate: false
+    - id: amplitude_weights
+      type: boolean?
+      default: False
+      inputBinding:
+        prefix: applyamp.updateweights=
+        separate: false
+
+outputs:
+    - id: msout
+      type: Directory
+      outputBinding:
+        glob: $(msin.basename)
+    - id: logfile
+      type: File[]
+      outputBinding:
+        glob: 'dp3_apply_delay*.log'
+
+hints:
+  - class: DockerRequirement
+    dockerPull: vlbi-cwl
+
+requirements:
+  - class: InitialWorkDirRequirement
+    listing:
+      - entry: $(inputs.msin)
+        writable: true
+  - class: InplaceUpdateRequirement
+    inplaceUpdate: true
+
+stdin: dp3_apply_delay.log
+stderr: dp3_apply_delay_err.log
+