[geo] Better invariant handling in Camera_Bound
[geo shell] Add Resident_debug_draw
[vis] Add draw_circle
[geo world util] Try adding some Camera_Bounds
[vis] Fix draw_circle corrupting stack
[geo] Camera_Bound has base of Resident
[geo shell] Allow editing Camera_Bound
[geo] While editing Camera_Bound you can make the radius either positive or negative.
[world] Put camera corners in correct order
[geo] Prevent losing Camera_Bound resize handle.