Draft: File watcher: reloads com.uniq if the file on disk changes (#355)
Add a file watcher that can reload the current single image if it changes on disk. This is controlled by a new GUI element ("refresh" icon next to the livestacker icon). Warnings are provided that if the file changes on disk, unsaved changes will be lost.
TODO: should it also be controllable with a command (filewatcher {-on | -off}
)? (I
think it should be GUI only, but marked as draft until this is decided.)
Closes #355
Tagged to 1.2.0 only because that's the milestone #355 is tagged to.