lib.ec.SSHClient: Add property port

Add a port property to SSHClient, parsed from the ctor's URL, to
supply the obvious information.

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/lib/ec/SSHClient.py

@@ -27,6 +27,7 @@ class SSHClient(ExecContext):
             log(ERR, f'Failed to parse SSH URI "{uri}"')
             raise
         self.__hostname = parsed.hostname
+        self.__port = parsed.port
         self.__password = parsed.password
         self.__username = parsed.username
 
@@ -107,6 +108,10 @@ class SSHClient(ExecContext):
     def hostname(self):
         return self.__hostname
 
+    @property
+    def port(self):
+        return self.__port
+
     def set_password(self, password: str) -> None:
         self.__password = password