Artboard creation

[William Kansepa]

@VectorStyler are there any future plans to implement Artboard manipulation / creation functionality similar or even better to Adobe Illustrator's:

1. Convert to Artboards (from multiple objects at once)
2. Fit to Artboard Bounds
3. Fit to Selected Art

[VectorStyler]

@William-Kansepa Something like (3) is ready for version 1.2

The main issue: how to select both the artboard and the objects?
The way it is for 1.2: the selected artboard size is adjusted to the objects inside (or intersecting) the artboard.

I added the others to the backlog.