Allow the entire model to be targed for LoRA and DoRA fine tuning: LoRA and DoRA embeddings with small DoRALinear bug fix

[zaithottakath]

• Added in LoRAEmbedding and DoRAEmbedding with tests so that embeddings can be targeted for fine tuning.
• Added in the ability to target all Linear and Embedding modules regardless of if they are in model.layers allowing both the embeddings and the lm_head to be targeted for fine tuning, allowing a nearly full LoRA or DoRA fine tune of the model.
• Fixed a bug with DoRALinear that sets the wrong self.m value due to it not being recalculated when the Linear layer is changed in DoRALinear.from_linear

I checked huggingface's PEFT library for how they handle DoRA for embeddings and there is still an open ticket for it. I wasn't able to find any reference implementations, so this could be the first example of that.