Merges mrp_bom_cost into mrp_account since they have both the same
depedences.
Task #1964809closesodoo/odoo#32722
Signed-off-by: Simon Lejeune (sle) <sle@openerp.com>
This is a preliminary work to handle the price of subcontracting. We put
this field in the generic `mrp_account` module because we also want to
support adding an extra cost on a finished move without having to work
with the wokorders, on a future task.
task 1831382