[ADD] estate, estate_account: modules for managing real estate businesses

[sidum-odoo]

Problem:
No existing module for managing real estate businesses.

Solution:
2 new modules : "estate" and "estate_account".
The main module "estate" allows property management with Kanban, List and Form views. Types, tags and offers can be added/assigned to a property. The flow is managed through automatic state changes when offers are received/accepted.
Additionnaly, the module "estate_account" allows automatic invoice creation when a property is sold.

Task-6229416

[robodoo]

[sidum-odoo]

@Megaaaaaa ready for review

[Megaaaaaa]

Hello 👋

I must say I'm impressed, this is a really really good PR 👍

There is very few things to say and very few reccurring comments. Only the trailing commas and the translations. Otherwise it's rather comment about technical stuff than about guielines. Tat's the kind of thing you want to have on your PRs later. That's nice 👍

So, please keep in mind that a review is not the utlimate solution, it's only someone seeing things he would have done differently and offering an alternative. You're always free to answer with an other alternative or even say you disagree and bring your arguments. For stuff that's not just styling or conventions, don't tak the wrong habit of just blindly applying comments, you spent time developping the thing, everything you've tried doesn't show up in the diff, only the final one. You probably have very interesting things to say to the reviewer about the decisions you made.

What I would suggest you do and continue to do while you're not the most comfortable with odoo's structure is to not apply all the changes at once. For example, changing multiple compute methods at once might lead you to a lot of errors if you don't check that the new implementation doesn't break anything before working on another one. Splitting the review in multiple steps and trying to run your db in between those can save you a lot of time in the long run.

Also a quick tip for the methodology when applying reviews changes: What I like to do it put a reaction like a thumbsup on a message once I have made the change locally. Then when everything is marked with something, I push, go through my diff and mark as resolved the things that are now outdated so nothing is left forgotten.

If you have any question, don't hesitate to ask!