sql: [gh-2307] Allow bigger row size for Tarantool payloads.

	src/lib/sqlite/src/
	* vdbe.c (sqlite3VdbeExec): Relax assertion by excluding Tarantool's
	backend. Tarantool stores tuples of arbitrary sizes in a single chunk,
	so assert makes no sense for Tarantool backend.

	test/sqlite-tcl/
	* types.result: All test cases pass.