This commit updates the res.currency data files to be compliant with
the ISO 4217 standard:
Add existing currencies missing from Odoo.
Remove currencies deprecated since at least 10 years.
Update incorrect currency names and rounding values.
task-2501384
closesodoo/odoo#69356
Related: odoo/upgrade#2400
Signed-off-by: Antoine Vandevenne (anv) <AntoineVDV@users.noreply.github.com>