[ADD] estate: created a new module

[pimai-odoo]

Created and configured the database for the Real Estate module, defining necessary fields such as property type, tags, buyer, salesperson, and offers. Implemented list, form, and search views with groupings, and added computed fields, inverse functions, and onchange functionalities. Included 'Sold' and 'Cancel' buttons with their corresponding functionality, as well as 'Accept' and 'Refuse' buttons with related logic.

[robodoo]

[bit-odoo]

Hello! can you please make sure that your runbot is green. https://runbot.odoo.com/runbot/tutorials-12?search=-pimai

And please update the PR message.