[IMP] commission_simple*: add XLSX report + improve PO generation

Add message un chatter of PO

commission_simple_agent_purchase/models/commission_profile.py

@@ -0,0 +1,20 @@
+# Copyright Akretion France (http://www.akretion.com/)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+from odoo import fields, models, api, _
+from odoo.exceptions import ValidationError
+
+
+class CommissionProfile(models.Model):
+    _inherit = 'commission.profile'
+
+    commission_product_id = fields.Many2one(
+        'product.product', string='Specific Commission Product', ondelete='restrict',
+        check_company=True,
+        domain=[('type', '=', 'service')],
+        help="If not set, Odoo will use the commission product configured on the accounting "
+        "configuration page."
+        )
+