Remove birthdate from the data returned by Partner

See merge request coopdevs/odoo-somconnexio-python-client!5

Name assertion

Add sponsor and coop agreement data to Partner response

See merge request coopdevs/odoo-somconnexio-python-client!4

Discovery channel resource management.

See merge request coopdevs/odoo-somconnexio-python-client!3

Cast the voluntary_contribution to int

See merge request coopdevs/odoo-somconnexio-python-client!2

Create version 0.1.0

See merge request coopdevs/odoo-somconnexio-python-client!1

We need a endpoint to validate that a VAT number exists in our system.
With this resource we can cover this requirement.

Usage:

partner = Partner.search_by_vat(vat="XXX")

We don't need to send this information because we only use one share
product and always 1 order part if the type is `new`. We can manage this
cases in Odoo instead of in the external service.