[IMP] web: Numeric fields can be non-formatted

This commit introduces a new option in fields inheriting from type Numeric
which is `format`.

By default, Numeric fields are formatted according to their subtypes and locale
Adding, in a view, the option format set to a falsy value
will prevent the field's value from being formatted.

```
<field name="int_field" options="{\'format\': false}"/>
```

Task 2050119

doc/reference/javascript_reference.rst

@@ -1570,6 +1570,15 @@ order.
 
         <field name="int_value" options='{"type": "number", "step": 100}'/>
 
+    - format: should the number be formatted. (true by default)
+
+    By default, numbers are formatted according to locale parameters.
+        This option will prevent the field's value from being formatted.
+
+    .. code-block:: xml
+
+        <field name="int_value" options='{"format": false}'/>
+
 - float (FieldFloat)
     This is the default field type for fields of type *float*.
 
@@ -1602,6 +1611,15 @@ order.
 
         <field name="int_value" options='{"type": "number", "step": 0.1}'/>
 
+    - format: should the number be formatted. (true by default)
+
+    By default, numbers are formatted according to locale parameters.
+        This option will prevent the field's value from being formatted.
+
+    .. code-block:: xml
+
+        <field name="int_value" options='{"format": false}'/>
+
 - float_time (FieldFloatTime)
     The goal of this widget is to display properly a float value that represents
     a time interval (in hours).  So, for example, 0.5 should be formatted as 0:30,