added sqlite connection class (progress)

backends/sqlite/src/sqlite_dialect.cpp

@@ -0,0 +1,11 @@
+#include "sqlite_dialect.hpp"
+
+[[maybe_unused]] const matador::sql::dialect* get_dialect() {
+  using namespace matador::sql;
+  static dialect d {{
+             { dialect::token_t::BEGIN, "BEGIN TRANSACTION"},
+             { dialect::token_t::COMMIT, "COMMIT TRANSACTION"},
+             { dialect::token_t::ROLLBACK, "ROLLBACK TRANSACTION"}
+  }};
+  return &d;
+}