Introduce a IsPaired role in the DevicesModel

Reviewed by Albert Vaca

interfaces/devicesmodel.cpp

@@ -170,6 +170,8 @@ QVariant DevicesModel::data(const QModelIndex& index, int role) const
         }
         case IconNameRole:
             return device->iconName();
+        case IsPairedRole:
+            return QVariant::fromValue<bool>(device->isPaired());
         default:
             return QVariant();
     }

interfaces/devicesmodel.h

@@ -44,7 +44,8 @@ public:
         IconModelRole = Qt::DecorationRole,
         StatusModelRole = Qt::InitialSortOrderRole,
         IdModelRole = Qt::UserRole,
-        IconNameRole
+        IconNameRole,
+        IsPairedRole
     };
     enum StatusFlags {
         StatusUnknown   = 0x00,