add role partner

db/seeds.rb

@@ -32,6 +32,7 @@ Role.create(name: 'moderator', description: 'This role represents a content Mode
 Role.create(name: 'supervisor', description: 'This role represents an user Supervisor in Portal MEC.')
 Role.create(name: 'editor', description: 'This role represents a content Supervisor in Portal MEC, with less privileges than admin.')
 Role.create(name: 'submitter', description: 'This role represents a content submitter in Portal MEC.')
+Role.create(name: 'partner', description: 'This role represents a partner Portal MEC.')
 
 # create the default admin
 User.create(