Since 0809f9f56c4e the modified cost price is rounded with the price
precision.
Closes#13041
(grafted from 10c6c8773040b6b6035753fd6c2f91efbcc094d9)
--HG--
branch : 7.0
If assign_try fails to assign all the moves, we check if all the moves of each
shipment and production are assigned and then assign them.
Also we remove the boolean return which makes no more sense.
Closes#7006
The fiscal years are created centered on the passed date such that if the
current day change during the execution, the fiscal year is still usable.
Also fiscal year can be created for a range of dates such that it is guarantee
that the dates are in the fiscal year.
And finally remove datetime and dateutil import when they are not used.
Closes#9977
Cédric Krier