Improvements to SelectTemplateDialog (#109 and #142)

- Added side pane for product preview and information
- Product selection is done with a separate pushbutton, so that user gets a
  chance to preview the complete product information before committing to the
  selection
- Supports two view modes: Grid View and List View
- View mode is automatically stored in Settings, so it will default to the
  user's prefered mode
- Should address most concerns in #109 and #142

glabels/Icons.h

@@ -541,6 +541,26 @@ namespace glabels
 			}
 		};
 
+
+		class ViewGrid : public QIcon
+		{
+		public:
+			ViewGrid()
+			{
+				addPixmap( QPixmap( ":icons/flat/22x22/glabels-view-grid.svg" ) );
+			}
+		};
+
+
+		class ViewList : public QIcon
+		{
+		public:
+			ViewList()
+			{
+				addPixmap( QPixmap( ":icons/flat/22x22/glabels-view-list.svg" ) );
+			}
+		};
+
 	}
 
 }