Bevel Tool:
1. Add functionality for width-method Width and Depth, when 'Only Vertices' is selected.
2. Move vertex_only's weight calculations, to accommodate the necessary order for vert_axis calculations.
3. remove unused (weight <= 0.0f) check.
4. remove unused line
```
v2 = BM_edge_other_vert(e->e, bv->v);
```