LyCORIS will support save oft_blocks instead of oft_diag in the near future (for both OFT and BOFT)

But this means we need to store the rescale if user enable it.

Fix wrong implementation in network_oft

no idea what i'm doing, trying to support both type of OFT, kblueleaf diag_oft has MultiheadAttn which kohya's doesn't?, attempt create new module based off network_lora.py, errors about tensor dim mismatch