refactor: Update gulp/source/helpers/help.js
refactor: Update gulp/source/helpers/help.js

- Add a internal flag to show the internal tasks used.
- Improve the way the docblocks are scrapped from the gulpfile.
This allows for a cleaner task documentation as well because the
"task: task_name" is no longer needed. The new scrapping method
will look for all the docblocks and its corresponding task name.

cgabriel5/wa-devkit,cgabriel5/wa-devkit