Purpose
=======
For a tag to be displayed on a kanban card, it needs to have a color set.
We won't be changing that behaviour, since it would mean having
two options > the color, and whether or not to show it in the kanban
The purpose of this task is to set a color on new tags to make the user
save a bit more time, set a color for him as he might not find the feature,
and make sure the tag will be on the kanban cards.
Specification
=============
For each of the following models, at creation, set a random integer between
1 and 11 in field 'color'
Models:
res.partner.category
crm.tag
project.tags
hr.applicant.category
helpdesk.tag
hr.employee.category
event.track.tag
mrp.eco.tag
repair.tags
closesodoo/odoo#49967
Taskid: 2234527
Related: odoo/enterprise#10112
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>