Added Flux to lora types in extra networks UI, so user can set.
Loras versioned first by user-set type, if any. Falls back to heuristics - these are much more reliable than the removed old A1111 tests and in case of no match default to Unknown (always displayed).
Filtering is done based on UI setting. 'all' setting does not filter. Filters lora lists on change.
Removed unused 'lora_hide_unknown_for_versions' setting.
1. fix several problems related to layerdiffuse not unloaded
2. fix several problems related to Fooocus inpaint
3. Slightly speed up on-the-fly LoRAs by precomputing them to computation dtype
