Auto-generate initial docstring instead

Author: gonzalocasas

componentize.py

@@ -131,7 +131,7 @@ def validate_source_bundle(source):
     sdk_mode = ghpython and ghpython.get('isAdvancedMode', False)
 
     if r'"""' not in python_code and sdk_mode is False:
-        print('Warning: {} file needs a docstring, otherwise the descriptions of the component and their inputs will be lost.'.format(code))
+        python_code = r'"""{}"""{}{}'.format(data.get('description', 'Generated by Componentizer'), os.linesep, python_code)
 
     return icon, python_code, data