add StrongSORT Tacker

feeder/sender/base.py

@@ -0,0 +1,21 @@
+
+import numpy as np
+import json
+
+class NumpyArrayEncoder(json.JSONEncoder):
+    def default(self, obj):
+        if isinstance(obj, np.integer):
+            return int(obj)
+        elif isinstance(obj, np.floating):
+            return float(obj)
+        elif isinstance(obj, np.ndarray):
+            return obj.tolist()
+        else:
+            return super(NumpyArrayEncoder, self).default(obj)
+        
+class BasSender:
+    def __init__(self) -> None:
+        pass
+
+    def send(self, messages):
+        raise NotImplementedError()