[Editor] Allow to switch gizmo to "Global" (World) coordinates instead of default "Local"

[Grabli66]

It's hard to use it after rotations. I think gizmo vectors must always show X, Y, Z axis. And it seems to me that this behavior is accepted in many 3D editors and game engines.

[michaliskambi]

The gizmos show local coordinate system. I.e. after rotating the object, your arrows to translate are rotated too.

Sometimes using local coordinate system is more comfortable, sometimes world coordinate system is better. In general 3D applications including game engines have both options, with various defaults -- Blender allows to switch to "Local" orientation, and Unity actually has it by default (though you can switch to "Global").

We should have an option to switch to "Global" coordinate system. By default IMHO we should continue to have "Local", just like Unity -- although there is no "perfect" option (whether global or local are better depends on what you want to do), I usually found "Local" to be more useful.