v2 visual representations of element in item collection bar.

[jdittrich]

Story: If I search for a component I want to find it by its look

Problem: Currently people only see the name

Solution:

• We could define a property that contains a link to an svg that represents the component
• We could render the graphics from draw2D directly into the component so the image gets automatically created.

[AlaaSarhan]

Doing some refactoring as part of this as well .. some things are starting to look like components, but gonna wait on introducing component framework for now as it is still quite simple case in general so far

[AlaaSarhan]

@jdittrich you can test my current attempt at solving this in branch origin/58-visual-rep-in-toolbar (PR #66)