Add lot traceability view

Following: https://discuss.tryton.org/t/view-lot-traceability/4590

assigned to @pokoli

added stock ~844 + 1 deleted label

Here is review381061002 implementing it. It still missing some test suite and minor fixes but all the functionality is there

added 1 deleted label and removed 1 deleted label

New review381061002 at https://codereview.tryton.org/381061002/#ps344781002

review381061002 updated at https://codereview.tryton.org/381061002/#ps350701002

review381061002 updated at https://codereview.tryton.org/381061002/#ps383371002

review381061002 updated at https://codereview.tryton.org/381061002/#ps355711002

review381061002 updated at https://codereview.tryton.org/381061002/#ps370481002

Indeed my comment about using table_query is not good because it will require for the database to scan all the moves which is not good for a growing table like stock_move. But also the current proposal as the same problem by joining the table with itself. In fact it is better to compute the downward and upward traces in Python just for the displayed moves. Here is review387871002 which implement a new model based on stock.move and compute the downward and upward traces. The benefit is that it works also if production is not activated (and replace the existing moves relate). And thanks to the contextual menu, user can follow the trace for a specific lot from a production. By the way I did not implement a scenario because the code is mainly about definition of model which is executed by the standard module test case.

assigned to @ced and unassigned @pokoli

added production label

review387871002 updated at https://codereview.tryton.org/387871002/#ps380301002

New changeset f9b4c7fcdd86 by Cédric Krier in branch 'default':
Add lot traceability
https://hg.tryton.org/modules/production/rev/f9b4c7fcdd86

added 1 deleted label and removed 1 deleted label

closed

New changeset 6b5f97da147a by Cédric Krier in branch 'default':
Add lot traceability
https://hg.tryton.org/modules/stock_lot/rev/6b5f97da147a

New changeset 54817318a430 by Cédric Krier in branch 'default':
Add lot traceability
https://hg.tryton.org/tryton-env/rev/54817318a430