Add ImageMagic service to handle raw and bmp

[Usurer]

I want to use Magic.NET for ARW, CR2 and BMP images Jpegs and Pngs should be handled by Imageflow since it's fast

[Usurer]

Resizing raw files on the fly - like I do with jpegs - doesn't work. Who could've think about it rly. It works, it's just really slow, too slow. The only solution I can thing of is to create thumbnails on the fly when scanning the folder. I.e. we encounter a raw file - we transform it to 1920x1080 jpeg and put this jpeg to the application folder. Maybe we can even use smaller image, 800x600. These images should be used for previews, in the folder view, and for image view we can ask for a full raw -> jpeg conversion. Which is also slow, meh. The obvious downside is that this folder will grow very big very fast. It's basically the copy of the gallery.

[Usurer]

Current plan:

• if folder contains jpg and raw with the same file name, then return jpg version; add icon/overlay on the preview that marks the image as "has raw version"
• do not show folder in the folder explorer until its scan is complete
• when scanning the folder, transform all raw image to 1024x768 jpegs and save them in the app folder
• when the folder is opened, return pre-generated jpegs instead of raw files
• add icon/overlay to mark the image as raw
• when the image is opened in the popup there should be a way to open the full raw->jpeg version, without resize
• on admin sidebar show how much space does the folder with pre-generaged jpegs take