Support deepseek-coder-7b-v1.5

[gyxlucy]

Please describe the feature you want
Support the latest DeepSeek coder models. There are two models: base and instruct tuned.
https://huggingface.co/deepseek-ai

---

Please reply with a 👍 if you want this feature.

[wsxiaoys]

ref #1230

[wsxiaoys]

Test it as DeepseekCoder-v15-7B at https://github.com/wsxiaoys/registry-tabby. It seems terrible when used in a FIM scenario.

[frunoob]

ref #110
both v1.5 models, instruct and base, no longer support FIM

[wsxiaoys]

Thanks for the information. Closing the issue as it's no longer approriate.