[ADD] website_forum_seo: adding new module for improving quality of foru...

...m questions and answers.

- Task: https://www.odoo.com/web?debug=#id=9107&view_type=form&model=project.task
- Pad: https://pad.odoo.com/p/r.aAXbFLdZvu62soZi
seo_word assignment list i am move to a line 15.
<code>for keyword, new_word, url in [(forum_word.keyword, forum_word.replacement_word, forum_word.url or None) for forum_word in forum_words]:</code>