[ADD] estate: implement estate property model

Author: HashemKhaled

estate/__init__.py

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+from . import models

estate/models/__init__.py

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+from . import estate_property

estate/models/estate_property.py

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+from odoo import models, fields
+
+class Property(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date()
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float()
+    bedrooms = fields.Integer()
+    living_area = fields.Integer()
+    bedrooms = fields.Integer()
+    living_area = fields.Integer()
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    garden_orientation = fields.Selection([
+        ('north', 'North'),
+        ('south', 'South'),
+        ('east', 'East'),
+        ('west', 'West'),
+    ])
+