pyln-proto: expose ShortChannelId and PublicKey.

They're generally useful.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

contrib/pyln-proto/pyln/proto/primitives.py

@@ -85,6 +85,9 @@ class ShortChannelId(object):
             and self.outnum == other.outnum
         )
 
+    def __hash__(self):
+        return self.to_int().__hash__()
+
 
 class Secret(object):
     def __init__(self, data: bytes) -> None:
@@ -147,6 +150,15 @@ class PublicKey(object):
             self.serializeCompressed().hex()
         )
 
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, PublicKey):
+            return False
+
+        return self.key == other.key
+
+    def __hash__(self):
+        return self.to_bytes().__hash__()
+
 
 def Keypair(object):
     def __init__(self, priv, pub):