Support TCD Sampling method

[taotaow]

https://github.com/jabir-zheng/TCD sampling method is newer and better than LCM,Hyper-SD Unified LoRA also use TCD
can you support the TCD sampling method,thank you

[yslai]

Pull request #568 now implements the TCD sampling as called for by Hyper-SD, including the eta parameter.