Sqlite: Improve Sqlite wrapper

It is now possible to read values at once.

for (auto [name, value] : statement.tupleValues<String, int>(1000, "foo", 20))
   ....

Change-Id: I3d4bc5218810b4620e1df625126aa490f30bbc71
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/sqlite/sqlitereadstatement.h

@@ -37,6 +37,8 @@ public:
     using SqliteStatement::next;
     using SqliteStatement::reset;
     using SqliteStatement::value;
+    using SqliteStatement::structValues;
+    using SqliteStatement::tupleValues;
     using SqliteStatement::text;
     using SqliteStatement::values;
     using SqliteStatement::columnCount;