Support for workers

[ybubuzi]

I am contributing to this project by creating a pull request. Since I am not a native English speaker, I apologize for any potential grammatical errors. Additionally, I am not deeply experienced in C++, so if there are any technical issues or poor implementations in my code, I would greatly appreciate your feedback.

In this submission, my primary goal is to ensure the smooth operation of the node-serialport module within a worker. To achieve this, I replaced the use of libuv with ThreadSafeFunction.

Also, please accept my apologies for the previous erroneous pull request. I regret my mistake and feel sorry for my careless action.