Show resolution on image view

[ndevenish]

E.g. hovering over any point should show you the resolution at that point - in the status bar (with x, y, I) would be great.

~Additionally, showing a live 'circle' showing the resolution, where you've hovered over sounded very useful to people in the room - making it easier to see anisotropic reflections was mentioned.~

• [ ] Show resolution in the status bar

[luisodls]

First part (status bar) Done

[dagewa]

Very nice, please add units (Å) and restrict to 1 d.p.

• [ ] Add units to status bar (Å)
• [ ] Restrict display to 1 decimal place

[luisodls]

Done ... and Done, closing now