OMI Format Compatibility

Opening up this thread to raise the conversation on compatibility with the Open Model Initiative standardized key format. We'd engaged w/ Marc Sun a while back on this topic, but wanted to centralize the discussion w/ respect to diffusers here.

@Nerogar has consolidated the OMI formats for models in this repo:
https://huggingface.co/Nerogar/omi_lora/tree/main

Before Onetrainer begins defaulting to the OMI format, we wanted to evaluate whether there was interest in getting support included in diffusers. I believe that Kohya will be introducing a converter for these, rather than setting as the default.

从 https://huggingface.co/Nerogar/omi_lora/tree/main 中汇总的 OMI 格式开始，并查看关于向 diffusers 添加 OMI 兼容性的现有讨论。明确是否应包含支持，以及它应当是转换器还是默认格式；达成一致的范围和实现计划后即视为完成。

由索引模型根据 Issue 内容生成。