[14.0][REF] rma: change rules to route in warehouse

[DavidJForgeFlow]

The stock.rule fields are not used anywhere on rma. It's only usability is automatically setting the rules when setting a new warehouse with a RMA system. However, these rules are created by default in the main warehouse by the data.
I propose to change the rules for routes to keep a good track of the RMA routes in warehouses and avoid duplicates.

@ForgeFlow

[codecov-commenter]

Codecov Report

Merging #456 (25b3a45) into 14.0 (fb9af9b) will decrease coverage by 0.02%.
The diff coverage is 73.33%.

Additional details and impacted files

@@            Coverage Diff             @@
##             14.0     #456      +/-   ##
==========================================
- Coverage   80.67%   80.65%   -0.02%     
==========================================
  Files         156      156              
  Lines        4858     4855       -3     
  Branches      894      892       -2     
==========================================
- Hits         3919     3916       -3     
+ Misses        729      727       -2     
- Partials      210      212       +2     

Files	Coverage Δ
rma/tests/test_rma.py	99.56% <100.00%> (-0.44%)	⬇️
rma_account/tests/test_rma_stock_account.py	98.06% <100.00%> (-1.29%)	⬇️
rma/models/stock_warehouse.py	82.05% <69.23%> (+3.22%)	⬆️

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update fb9af9b...25b3a45. Read the comment docs.

[AaronHForgeFlow]

Overall looks good. I have to do more testing. Just a couple of questions.

If I create a new warehouse and mark the opetion "RMA in this Warehouse" the routes are not created. I have to save and then edit and mark the option in order to get them created.

Then, once created, I could not make them work as they are. I created a customer RMA to be received in the RMA location for the new warehouse, but when I tried to create the incoming shipment the system was not able to fin the route, even when I select the new route in the RMA line

[AaronHForgeFlow]

Also, I think the mehtod def _default_routes(self): in rma_operation should be changed so it takes the routes of the default warehouse

[AaronHForgeFlow]

Working good now merging soon