sqlite3: Replace Py_BuildValue with faster APIs

[erlend-aasland]

cpython/Modules/_sqlite/microprotocols.c

Lines 83 to 87 in 274769c

	/* look for an adapter in the registry */
	key = Py_BuildValue("(OO)", (PyObject*)Py_TYPE(obj), proto);
	if (!key) {
	return NULL;
	}

Can use faster PyTuple_Pack.

cpython/Modules/_sqlite/microprotocols.c

Lines 60 to 63 in 274769c

	key = Py_BuildValue("(OO)", (PyObject*)type, proto);
	if (!key) {
	return -1;
	}

Can use faster PyTuple_Pack.

cpython/Modules/_sqlite/connection.c

Lines 1585 to 1587 in 274769c

	} else {
	return Py_BuildValue("i", sqlite3_total_changes(self->db));
	}

Can use PyLong_FromLong.