GitLab

* A1111 import: Set VAE name

This patch sets the VAE name for the `VAELoader` when present in the png
metadata.

* A1111 import: Skip all hashes

When importing from A1111 the parsing assumes that values of a key will
never contain a ":", which is not correct.

There are 2 cases where we can have ":" in the value:

- Inside a string. E.g.:
  Lora hashes: "xl_more_art-full_v1: fe3b4816be83, add-detail-xl: 9c783c8ce46c"

- When the value is a json dictionary. E.g.:
  Hashes: {"vae": "63aeecb90f", "embed:negativeXL_D": "fff5d51ab6"}

This patch changes how we parse the metadata to take those 2 cases into
account and also skips the following additional keys that are present in
some Forge images:

- Version
- VAE hash
- TI hashes
- Lora hashes
- Hashes

* A1111 import: Parse Hires steps

This patch parses the `Hires steps` parameter that is part of the High
Resolution Upscale configuration when it  is present, and fallbacks to
the one from the `samplerNode` (like the code currently does) if it's
not present.

The created checkpoints contain workflow metadata that can be loaded by
dragging them on top of the UI or loading them with the "Load" button.

Checkpoints will be saved in fp16 or fp32 depending on the format ComfyUI
is using for inference on your hardware. To force fp32 use: --force-fp32

Anything that patches the model weights like merging or loras will be
saved.

The output directory is currently set to: output/checkpoints but that might
change in the future.

 - model name, other basic settings
 - clip skip
 - hr upscale
 - loras
 - embeddings

Started rework of UI elements
Added pnginfo handling