Extrude

• Add option to only show the Normal direction of the Extrude Gizmo, enabled by default.
  • In the tool settings, the user is presented with this enum: [Normal : Orientation]. When set to Normal, only show Normal direction. When set to Orientation, the user sees three axes, aligned to whichever Orientation is set in the viewport header.

By default we set the Extrude tool to only display the Normal direction:

After initial extrusion, users can use arrow to adjust it:

If the user sets the tool to use the Scene Orientation, all the axes are displayed, the direction of which follow the Orientation setting:

• Currently, the Extrude Gizmo is HUGE, and often goes off screen. As you can see here, the Extrude Gizmo is almost twice the size of the regular gizmos. We should make it the same size:
• The Extrude Gizmo handles don't actually work at all. Should be fixed. Fixed rB49fa58e330
• We could combine Extrude Region, Extrude Individual, Extrude Along Normals into same tool, and simply add a tool setting to switch between the various extrusion methods
• Q: How would this work for showing options in the top-bar which only apply to one tool? (Along-Normal -> Offset-Even, Click-Extrude -> Rotate-Source). Even if they are combined, we would need a gizmo that gives access to all at once, and a way to expose options that makes it obvious which tool you access. Unless this is done well, I think it's just moving options around since we might end up still needing a way to select between different kinds of extrude.
• A: Well, the extrude type would just be a tool setting. And yes, it literally is exactly that: just moving things around. That's why I think it's a lower priority.
• We could add a setting to generate divisions along the extrusion