slip-0173: add (satoshilabs#1387)

Author: JeremyParish69

slip-0173.md

@@ -119,6 +119,7 @@ These are the registered human-readable parts for usage in Bech32 encoding of wi
 | [OmniFlix](https://omniflix.network/)           | `omniflix`    |         |             |
 | [Oraichain](https://orai.io/)                   | `orai`        |         |             |
 | [Osmosis](https://osmosis.zone)                 | `osmo`        |         |             |
+| [Passage](https://passage3d.com/)               | `pasg`        |         |             |
 | [Peercoin](https://www.peercoin.net)            | `xpc`         | `tpc`   |             |
 | [Persistence](https://persistence.one/)         | `persistence` |         |             |
 | [PKT](https://github.com/pkt-cash/pktd)         | `pkt`         | `tpk`   |             |