[13.0][ADD] model_serializer: module to facilitate the (de)serialization of Odoo Models into DataModels

[fdegrave]

This model adds functionalities similar to (a subset of) what offers Django Rest Framework through their Model Serializers (hence the name).

The ModelSerializer class inherits from the Datamodel class and adds functionalities. Therefore any class inheriting from ModelSerializer can be used the exact same way as any other Datamodel.

Basic example:

    from odoo.addons.model_serializer.core import ModelSerializer

    class PartnerInfo(ModelSerializer):
        _name = "partner.info"
        _model = "res.partner"
        _model_fields = ["id", "name", "country_id"]

This ModelSerializer also provides methods to easily transform a recordset into a corresponding datamodel, and vice-versa. Please read the (still very short) doc to have more info on how it works.

I know there are no tests yet, but I will add them in case that the module is accepted. Test added! Not full yet, but quite complete

[lmignon]

same as in #193

[lmignon]

/ocabot merge nobump

[OCA-git-bot]

On my way to merge this fine PR!
Prepared branch 13.0-ocabot-merge-pr-177-by-lmignon-bump-nobump, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at 269746e. Thanks a lot for contributing to OCA. ❤️