CivitAI downloader - Handling filenames with slash symbol on Windows.

[Kanareika]

I tried to download this Lora (warning: NSFW images): https://civitai.com/models/287657/oroborus-savagexthicc-style-lora
Got an error: "Error: Failed to download the model due to internal exception. "
In the console window, there is exception:

Failed to download the model due to internal exception: System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\sd_models\Lora\Oroborus\Savagexthicc - Style LoRA - Oroborus PonyXL.download.tmp'.
   at Microsoft.Win32.SafeHandles.SafeFileHandle.CreateFile(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options)

So, basicaly, instead of full filename, Windows interpreted it like a local path.

[mcmonkey4eva]

Pushed fix to autocreate directories as-needed based on your save name

Note that ^ the default save name for this model has a / in it, so it will go into a folder named Oroborus - if you don't want this, just remove the / from the save name before you click download