[IMP] base: widget currency, allow to force decimal_places

This commit allow to add in t-options the decimal_places.
It is useful in case all price are without decimal e.g.

closes odoo/odoo#120036

X-original-commit: 800d18f2e9f94c68ebca281c9956abb23e7e33e6
Signed-off-by: Thibault Francois <tfr@odoo.com>
Signed-off-by: Jérémy Kersten <jke@odoo.com>

odoo/addons/base/models/ir_qweb_fields.py

@@ -453,7 +453,7 @@ class MonetaryConverter(models.AbstractModel):
         # lang.format will not set one by default. currency.round will not
         # provide one either. So we need to generate a precision value
         # (integer > 0) from the currency's rounding (a float generally < 1.0).
-        fmt = "%.{0}f".format(display_currency.decimal_places)
+        fmt = "%.{0}f".format(options.get('decimal_places', display_currency.decimal_places))
 
         if options.get('from_currency'):
             date = options.get('date') or fields.Date.today()