loongson/mirror: links for j1939-pgn

loongson/mirror J1939_PGN-0.4.tar.gz
loongson/mirror J1939_PGN-0.4-py3-none-any.whl
loongson/mirror J1939_PGN-0.0.3.post0.dev1.tar.gz
loongson/mirror J1939_PGN-0.0.3.post0.dev1-py3-none-any.whl