Forward-port bot is now creating draft PR to avoid notification spam, therefore
it is necessary to catch the changes in the earliest possible version they
appear, hence this backport to v12.0 which is the oldest version supported at
the time of this commit.

The following changes have been done compared to master:

Enabled accounting rules:
/addons/account*/
/addons/l10n_*/

Removed not yet existing path:
/addons/account/tests/test_portal_attachment.py
/addons/test_mail_full/

closes odoo/odoo#67215

Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>

* gitignore pycache folders (apparently appear for some)
* update xlwt requirement: 1.1.2 does not work with Python 3.6, 1.2 should work, 1.3 officially supports it

Try a "git blame" or "git shortlog -nse"

Still around 10 commit remaining to be indentified.

previous port only had the web client's rules

bzr revid: vyruss@hellug.gr-20090608003943-i0719tclkmxxztv1

bzr revid: p_christ@hol.gr-20090421085332-ayl6nrsrbsoo261y

bzr revid: p_christ@hol.gr-20081124152022-6t37e0c27871vfux