[Feature Request] Extrude selected vertices

[DoktorBeta]

Validations

• I have checked for similar feature requests and could not find any.
• I have made sure this is not an already-existing feature.

Description

When editing meshes, it is a lot of clicking to individually create points and connect them.

Suggested solution

After selecting one or more vertices, use "extrude" command to copy and move the vertices and their connections, with edges between the new and old verts.

Alternative solution

No response

Additional Context

No response

[r888800009]

@DoktorBeta I think this feature needs to consider which vertices should be connected, and we need to consider how the algorithm is implemented

There is currently another PR that provides automatic connection, but only when adding a single vertex, maybe you are interested in it

#401

[r888800009]

In addition, I think these features should be implemented first to improve the ease of use of this feature.

• #314