added operators to TableSectionBuilder

Tablet/TableSectionBuilder.swift

@@ -102,4 +102,14 @@ public extension TableSectionBuilder {
         if let tableView = tableView { rowBuilders.forEach { $0.registerCell(inTableView: tableView) } }
         builders.appendContentsOf(rowBuilders)
     }
+}
+
+public func +=(left: TableSectionBuilder, right: RowBuilder) {
+
+    left.appendRowBuilder(right)
+}
+
+public func +=(left: TableSectionBuilder, right: [RowBuilder]) {
+
+    left.appendRowBuilders(right)
 }