Workflow improvements - Mesh Tools - Make Extrude dropdown a menu with a smaller button in Icon mode

[ReinerBforartists]

Best is to have all tools in the tool shelf. But we have just limited space there. So we need to think twice what tools should be in the tool shelf, and what tools should be in the corresponding menu.

The extrude dropdown box contains just uncommon extrude methods. I have never used a single method out of this menu. So this one is best placed in the Mesh menu. This saves us the space for four more tools in the tool shelf.

[ReinerBforartists]

Bad idea. Tools belongs into the tool shelf. But we can make it tinier. Ideally a small icon button that calls a menu.

[ReinerBforartists]

Fixed in workflow branch
5482f3d