Data improvements:
- Added missing tax groups
- Added VAT 8%, used for tourism operations on special hollidays
- Fixes base percentage on Withhold VAT taxes
- Corrected tax name from Iva to IVA
- Improves SRI paymment options, with sequence widget and inactavtes
deprecated payment options.
- Fixes short code of document types
- Corrects document type name for insurance
- Adds withhold document type, to be implemented in separated module

Other improvements:
- Automatic setup of several journals when creating new companies
- Adds restrictions to ensure proper setup of ecuadorian journals
- Improves ecuadorian journal form

More improvements:
- Removes unused fiscal positions
- Removes unnecessary journals
- Desactivates unused payment methods
- Adds migration scripts
- Add SRI Root menu
- More fixes and improvements

Co-authored-by: Andres Calle <andres.calle@trescloud.com>

- Improved fiscal positions
- Removed overkilling constraints
- Removed new fields in payment methods SRI
- Removed unnecesary migration scripts
- Fixed Indentation
- Fixed authors

As the is_invoice trick was not authorized by Odoo, then another method
should be used for sending emails from withholds

Added support for withholds and removed unsupported scenario for exports

In Latam some purchase documents (such as purchase liquidation) are
issued by the company as an EDI document, even more some sales documents
are issued by the customer (such as the sale withhold).

To easily support those scenarios we improve the logic for validation of
third party documents.

The invoice number uniqueness validation in Latam will depend mainly if
the document is issued by the company or from a third party. Note that
in EC, CL, PE, some electronic purchase documents can be issued by the
company itself to accomodate suppliers withoud electronic documents.

It will help Odoo decide if the document should be manually numbered or
auto numbered in Ecuador, usefull por purchase liquidations

Maybe should be removed from this PR, but to illustrate the benefit of
attemped change. It is a theorical change, not tested!

…KyV08kl90ALV9OUr0CyXkf23IMRuc@github.com/TRESCLOUD/odoo.git into 2022-05-AC-IMP-l10n_ec_standard

Adds the most common ocurrences of purchase VAT taxes by its tax support, to be easily used in withholds 2.0

Before it was calling twice to _get_last_sequence_domain().
BTW relaxed is False by default, so no need to explicit set as False

Previously more document types than necesary where shown

[IMP] Now comments in data files are in lowercase

For vat withhold taxes, replace factor_percent=12% with
factor_percent=100%

[FIX] Tax 541 fixed and fixes to the xml form

Just keep the strictly neccesary

…KyV08kl90ALV9OUr0CyXkf23IMRuc@github.com/TRESCLOUD/odoo.git into 2022-05-AC-IMP-l10n_ec_standard

…X-541

[IMP] Cosmetic fixes to the code

[IMP] Added journals use the current company emission address

…KyV08kl90ALV9OUr0CyXkf23IMRuc@github.com/TRESCLOUD/odoo.git into 2022-05-AC-IMP-l10n_ec_standard

Improve how to catch identification types for foreign companies and
final consumer