Tag exported image as sRGB when exporting it as such

Currently, Blender does not tag its exported sRGB images as such. This is a problem if an image is meant for final use, as some apps, such as Windows' built-in photo viewer or browsers will not display the image in the same way as Blender if it is not tagged correctly.

Currently, Blender requires users to tag the image properly using an external image editor. Should this be necessary?

What I propose is that Blender correctly tags images as sRGB if they're such.