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/sqlitedatabase.h

@@ -37,12 +37,14 @@ namespace Sqlite {
 
 class SQLITE_EXPORT SqliteDatabase
 {
+    template <typename Database>
     friend class SqliteAbstractTransaction;
     friend class SqliteStatement;
     friend class SqliteBackend;
 
 public:
     SqliteDatabase();
+    SqliteDatabase(Utils::PathString &&databaseFilePath);
 
     SqliteDatabase(const SqliteDatabase &) = delete;
     bool operator=(const SqliteDatabase &) = delete;