init: Euro-Office Odoo 16.0 modules

Based on onlyoffice_odoo by Ascensio System SIA (ONLYOFFICE, LGPL-3).
Rebranded and adapted for Euro-Office by bring.out d.o.o.

Modules:
- eurooffice_odoo: base integration
- eurooffice_odoo_templates: document templates
- eurooffice_odoo_oca_dms: OCA DMS integration (replaces Enterprise documents)

All references renamed: onlyoffice -> eurooffice, ONLYOFFICE -> Euro-Office.
Original copyright notices preserved.

odoo-bringout-eurooffice-eurooffice_odoo_templates/eurooffice_odoo_templates/data/templates_data.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" ?>
+<odoo>
+  <function model="eurooffice.odoo.templates" name="_create_demo_data" />
+</odoo>