[IMP] add value for the switzerland

easy_my_coop_ch/models/__init__.py

@@ -1 +1,2 @@
-from . import coop
+from . import coop
+from . import partner

easy_my_coop_ch/models/partner.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+from openerp import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    legal_form = fields.Selection(selection_add=[
+                                ('ei', 'Individual company'),
+                                ('snc', 'Partnership'),
+                                ('sa', 'Limited company (SA)'),
+                                ('sarl', 'Limited liability company (Ltd)'),
+                                ('sc', 'Cooperative'),
+                                ('asso', 'Association'),
+                                ('fond', 'Foundation'),
+                                ('edp', 'Company under public law')
+                                ])