test: yaml test job conf files

back/adapters/test_conf_file/test_correct_file.yaml

+bin: "/usr/bin/echo"
+parameters:
+  - name: "to_print"
+    value_type: "String"
+    default_value: ""
+    comment: "Value to print on the cli"
+    required: true
+    named: false
+    parameter_name: ""
\ No newline at end of file

back/adapters/test_conf_file/test_missing_parameter_name.yaml

+bin: "/usr/bin/echo"
+parameters:
+  - name: "to_print"
+    value_type: "String"
+    default_value: ""
+    comment: "Value to print on the cli"
+    required: true
+    named: true
\ No newline at end of file

back/adapters/test_conf_file/test_wrong_cast.yaml

+bin: "/usr/bin/echo"
+parameters:
+  - name: "to_print"
+    value_type: "Integer"
+    default_value: "caca"
+    comment: "Value to print on the cli"
+    required: true
+    named: false
+    parameter_name: ""
\ No newline at end of file