image browser UI suggestions

[pierrelabreche]

• Right-click menu for Thumbnail and Caption bar : add select / unselect and move up and down
• Thumbnail Caption bar select indicator : clicking the select indicator toggles it. Also display select indicator in the off state.
• Display additional inputs (such as reused masks and input images) to the left of each thumbnail ; display secondary outputs (such as new masks) to the right of each thumbnail. This will make the workflow more visual with a left to right processing flow
• Additional inputs navigation : for example, when hovering or when righ-clicking, displays the image source number and caption ; if clicked, makes it the current image
• Primary and Secondary outputs navigation : for example, when hovering or when righ-clicking the image thumbnail or any secondary outputs, displays a list of the the "where used" image number and caption ; if "where used" item is clicked, makes it the current image