[IMP] account/stock_account: Add a clickable history on journal entries chatters

Purpose:
In a perpetual inventory mode, it is not possible to reach the picking from the journal entry view because the ref field is not clickable. I propose to show a chatter to get the history (which doc created the move) and being able to go to the move from the chatter.

Specification:
In journal entry view add chatter and generate message(clickable) that link to  its Origin (i.e Supplier Invoice , Customer Invoice, Picking in case of Perpetual Inventory)

addons/account/models/account_invoice.py

@@ -894,6 +894,9 @@ class AccountInvoice(models.Model):
                 'move_name': move.name,
             }
             inv.with_context(ctx).write(vals)
+            move.message_post_with_view('mail.message_origin_link',
+                    values={'self': move, 'origin': inv},
+                    subtype_id=self.env.ref('mail.mt_note').id)
         return True
 
     @api.multi

addons/account/models/account_move.py

@@ -18,6 +18,7 @@ from lxml import etree
 class AccountMove(models.Model):
     _name = "account.move"
     _description = "Account Entry"
+    _inherit = ['mail.thread']
     _order = 'date desc, id desc'
 
     @api.multi

addons/account/views/account_view.xml

@@ -1349,6 +1349,10 @@
                         </page>
                     </notebook>
                     </sheet>
+                    <div class="oe_chatter">
+                        <field name="message_follower_ids" widget="mail_followers"/>
+                        <field name="message_ids" widget="mail_thread"/>
+                    </div>
                 </form>
             </field>
         </record>

addons/stock_account/models/stock.py

@@ -137,6 +137,9 @@ class StockQuant(models.Model):
                     'date': date,
                     'ref': move.picking_id.name})
                 new_account_move.post()
+                new_account_move.message_post_with_view('mail.message_origin_link',
+                        values={'self': new_account_move, 'origin': move.picking_id},
+                        subtype_id=self.env.ref('mail.mt_note').id)
 
     def _quant_create_from_move(self, qty, move, lot_id=False, owner_id=False, src_package_id=False, dest_package_id=False, force_location_from=False, force_location_to=False):
         quant = super(StockQuant, self)._quant_create_from_move(qty, move, lot_id=lot_id, owner_id=owner_id, src_package_id=src_package_id, dest_package_id=dest_package_id, force_location_from=force_location_from, force_location_to=force_location_to)