This allow the browser/device to handle the experience of handling number in a more native way.
FieldInteger and FieldFloat now inherits from NumericField because we want
to format it or not dependent of the view (readonly or edit) and the
NumericField will manage it.
We do that because input type number can't take a value with comma on Chrome
(FireFox is more permissive but not perfect because comma is the separator
for decimal in this case).
Task #1880376
svs-odoo
74fcd3ac3b