Object Axis Visibility/Usability Improvement

What the problem

Sometmes it is necesarry to see orientations of many/all objects in scene. Current Axis feature in Object Properties kinda made to solve this necessity. But there is number of issues.

1. Enabling/Disabling - only as per object properties. No some globall toggle.
2. They are not screen size based - when you zoom out they become barely visible/recognizable.
3. Same about color - they just some "black" or some "selected" wire color, same as object. Sometimes they absolutely blended with objects and become not visible.
4. Because it's just objects (some "empties trick") in scene - they may just sit behind/inside of object so you can't see them.

What proposed

Move this feature to some sort of overlay (like origins), make it screes size based, add option to Overlays pannel for global toggle (maybe even merge it with Origins like on mockup). Global Origins/Axis toggle OFF will hide all axes enabled via objects properties, global Axis (All) toggle ON will enable axes visualization for all objects.