feat: add banner_mode

Signed-off-by: Dup4 <lyuzhi.pan@gmail.com>

xcpcio_board_spider/type/contest.py

@@ -22,6 +22,7 @@ def __init__(self,
                  balloon_color: typing.List[Color] = None,
                  logo: Image = None,
                  banner: Image = None,
+                 banner_mode: str = None,
                  options: ContestOptions = None,
                  ):
         self.contest_name = contest_name
@@ -62,6 +63,11 @@ def __init__(self,
         else:
             self.banner = None
 
+        if banner_mode is not None:
+            self.banner_mode = banner_mode
+        else:
+            self.banner_mode = None
+
         if options is not None:
             self.options = options
         else:
@@ -127,6 +133,9 @@ def get_dict(self):
         if self.banner is not None:
             obj["banner"] = self.banner.get_dict
 
+        if self.banner_mode is not None:
+            obj["banner_mode"] = self.banner_mode
+
         obj["options"] = self.options.get_dict
 
         return obj