[14.0][ADD] email_template_configurator

[marielejeune]

This module implements a simpler interface for the email template dynamic fields. A configurator allows the creation of predefined named replacement strings, which can then be selected in the template.

NB: This module works in production at Acsone since several years. :-)

[github-actions]

There hasn't been any activity on this pull request in the past 4 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days.
If you want this PR to never become stale, please ask a PSC member to apply the "no stale" label.

[marielejeune]

@sbidoul can you reopen and add the no stale label please?
As this is used in production for years now, and it has a positive review, we may even merge this? :-)

[sbidoul]

/ocabot merge nobump

[OCA-git-bot]

Hey, thanks for contributing! Proceeding to merge this for you.
Prepared branch 14.0-ocabot-merge-pr-1278-by-sbidoul-bump-nobump, awaiting test results.

[OCA-git-bot]

@sbidoul The merge process could not be finalized, because command twine check odoo14_addon_email_template_configurator-14.0.1.0.1.dev2-py3-none-any.whl failed with output:

Checking 
odoo14_addon_email_template_configurator-14.0.1.0.1.dev2-py3-none-any.whl: �[31mFAILED�[0m
�[31mERROR   �[0m `long_description` has syntax errors in markup and would not be        
         rendered on PyPI.                                                      
         No content rendered from RST source.                                   
�[33mWARNING �[0m `long_description_content_type` missing. defaulting to `text/x-rst`.   

[sbidoul]

@marielejeune this modules lacks a DESCRIPTION.rst