[IMP] base: make ir.model.data use access fields

Apparently some "core objects" used to have a pair of
fields (date_init, date_update) which predate the current access
fields (hopefully anyway, the genesis of both is lost to time so we
can only speculate).

odoo/odoo#34988 removed them on constrains & relations and left them
on ir.model.data, but they do seem redundant with the regular access
fields which *are* enabled on ir.model.data.

* removes the date_init/date_update fields
* converts the one bit of code which did set those to set
  create_date/write_date
* add a default value on the columns, to ensure create_date is
  properly set even from SQL queries
* use create_date/write_date in the view
* adds setting those columns to a bunch of raw SQL queries which were
  missing them (also updates the queries some to merge the literal
  values into the queries as it seems unnecessary to interpolate
  e.g. a boolean literal)

Builds on and closes odoo/odoo#50516 as that's why I started looking
into it, and that fix is in this branch as well.

closes odoo/odoo#50661

Related: odoo/upgrade#1213
Related: odoo/enterprise#10772
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>

odoo/addons/base/data/base_data.sql

@@ -84,13 +84,11 @@ CREATE TABLE ir_module_module_dependency (
 CREATE TABLE ir_model_data (
     id serial NOT NULL,
     create_uid integer,
-    create_date timestamp without time zone,
-    write_date timestamp without time zone,
+    create_date timestamp without time zone DEFAULT (now() at time zone 'UTC'),
+    write_date timestamp without time zone DEFAULT (now() at time zone 'UTC'),
     write_uid integer,
     noupdate boolean DEFAULT False,
     name varchar NOT NULL,
-    date_init timestamp without time zone,
-    date_update timestamp without time zone,
     module varchar NOT NULL,
     model varchar NOT NULL,
     res_id integer,