Support having a "handle" field for the RetryOptions object

Related - https://github.com/Azure/azure-functions-durable-js/issues/329

In retriable DF APIs, dotnet users can add a "handle" field to their "RetryOptions" object. This allows them to provide custom logic to determine whether or not to shortcircuit a retriable operation such that the task is no longer attempted. This is difficult to do in the OOProc model, but we should investigate how to enable it.

Some of the relevant dotnet documentation is here: https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.webjobs.extensions.durabletask.retryoptions?view=azure-dotnet

首先查看此 Python repository 中的 RetryOptions API、相关 issue #329 以及链接的 .NET RetryOptions 文档。确定一个可行且兼容 OOProc 的 handle callback 设计，并定义预期的短路行为；当支持的方案和范围达成一致时即视为完成。

由索引模型根据 Issue 内容生成。