Add unique_id_from_bytes for NCCLLibrary

[Abatom]

Reconstructs an ncclUniqueId object from bytes data for NCCLLibrary

Provide a function that converts bytes into a ncclUniqueId for NCCL to establish connections. This function can be used in dynamic point-to-point communication scenarios, such as PD separation, to establish point-to-point communication for transmitting KV Cache.

First, the bytes can be transmitted via zmq or other methods. Then, the unique_id_from_bytes function is used to convert the bytes into a ncclUniqueId. Finally, the ncclCommInitRank function is called to complete the point-to-point NCCL connection.