The purpose of this commit is to make requisition usable with only services. Stock part is extracted in a new module `purchase_requisition_stock` which allows to create requisition based on product availbility or demand, also
we have moved all security access related stock in this bridge module.
Task ID : 1851286
This commit simply move code into the right file.
The goal is here to fit the guidelines and prepare
the module for some changes. This will ease the
reading of module code.
Task-1851286
closesodoo/odoo#28795