Basic support for xml data files

openerp/cli/scaffold.py

openerp/cli/scaffold/__openerp__.jinja2

openerp/cli/scaffold/controllers.jinja2

openerp/cli/scaffold/ir.model.access.jinja2

openerp/cli/scaffold/models.jinja2

openerp/cli/scaffold/record.jinja2

openerp/cli/scaffold/webclient_css.jinja2

openerp/cli/scaffold/webclient_js.jinja2

openerp/cli/scaffold/webclient_xml.jinja2

openerp/cli/scaffold/xmldata.jinja2