Add PayDunya payment provider integration

- Implemented PayDunya payment provider with necessary models, controllers, and views.
- Added configuration files for Docker and Odoo setup.
- Included .gitignore for Python and Odoo specific files.

addons/payment_paydunya/__manifest__.py

@@ -0,0 +1,17 @@
+{
+    'name': 'PayDunya Odoo',
+    'version': '1.0.0',
+    'summary': 'PayDunya payment provider',
+    'description': 'Payment acquirer integration for PayDunya',
+    'category': 'Accounting/Payment Providers',
+    'author': 'MMG',
+    'depends': ['payment'],
+    'data': [
+        'data/payment_provider_data.xml',
+        'data/payment_method_data.xml',
+        'views/payment_paydunya_views.xml',
+        'views/payment_paydunya_templates.xml',
+    ],
+    'installable': True,
+    'application': False,
+}