Add support for new rest public endpoints (in BfxRestInterface.py, serializers.py and typings.py).

bfxapi/rest/exceptions.py

@@ -1,6 +1,17 @@
+__all__ = [
+    "RequestParametersError"
+]
+
 class BfxRestException(Exception):
     """
     Base class for all exceptions defined in bfxapi/rest/exceptions.py.
     """
 
+    pass
+
+class RequestParametersError(BfxRestException):
+    """
+    This error indicates that there are some invalid parameters sent along with an HTTP request.
+    """
+
     pass