fix: make codable classes picklable

Author: harsh-csl

tsrkit_types/itf/codable.py

@@ -80,4 +80,7 @@ def _check_buffer_size(cls, buffer: bytearray, size: int, offset: int) -> None:
             offset: The offset at which to start encoding the value.
         """
         if len(buffer) - offset < size:
-            raise ValueError("Buffer too small to encode value")
+            raise ValueError("Buffer too small to encode value")
+
+    def __reduce__(self):
+        return (self.__class__.decode, (self.encode(),))