cleverage/process-bundle#162 Add demo.file.csv_writer process

Author: njoubert-cleverage

config/packages/process/demo.file.csv_writer.yaml

@@ -0,0 +1,30 @@
+clever_age_process:
+    configurations:
+        demo.file.csv_writer:
+            description: >
+                A simple process which write a csv
+            help: >
+                Ex: bin/console cleverage:process:execute demo.file.csv_writer
+            options:
+                ui:
+                    source: Bar
+                    target: Foo
+            tasks:
+                entry:
+                    service: '@CleverAge\ProcessBundle\Task\ConstantIterableOutputTask'
+                    outputs: [ write ]
+                    options:
+                        output:
+                            - column1: value1-1
+                              column2: value2-1
+                              column3: value3-1
+                            - column1: value1-2
+                              column2: value2-2
+                              column3: value3-2
+                            - column1: ''
+                              column2: null
+                              column3: value3-3
+                write:
+                    service: '@CleverAge\ProcessBundle\Task\File\Csv\CsvWriterTask'
+                    options:
+                        file_path: '%kernel.project_dir%/var/data/csv_writer_{date_time}.csv'