Create partner_contact_personal_information_page.

Really I'm just renaming partner_contact_base.
The new name is more self-explanatory.

partner_contact_nationality/__openerp__.py

@@ -23,7 +23,7 @@
     "category": "Customer Relationship Management",
     "website": "https://odoo-community.org/",
     "depends": [
-        "partner_contact_base",
+        "partner_contact_personal_information_page",
     ],
     "data": [
         "views/res_partner.xml",

partner_contact_nationality/views/res_partner.xml

@@ -5,7 +5,7 @@
 <record id="form" model="ir.ui.view">
     <field name="name">Nationality field</field>
     <field name="model">res.partner</field>
-    <field name="inherit_id" ref="partner_contact_base.personal_information"/>
+    <field name="inherit_id" ref="partner_contact_personal_information_page.personal_information"/>
     <field name="arch" type="xml">
         <data>
             <xpath expr="//group[@name='personal_information_group']">