Add a bunch of graphics tool icons

[danirabbit]

Based on Tango icons for Inkscape

• color fill
• color-gradient
• color-gradient-mesh
• color-picker
• draw-calligraphic
• draw-cuboid
• draw-ellipse
• draw-eraser
• draw-freehand
• draw-path
• draw-polygon-star
• draw-rectangle
• draw-spiral
• draw-text
• tool-measure
• tool-node-editor
• tool-pointer
• tool-spray
• tool-tweak
• zoom

[danirabbit]

I'm not real happy with the measure tool.

I'm wondering if maybe all the shape icons should be the same color to help group them? (rectangle, ellipse, polygon, cuboid). I kind of like the purple here because it matches insert-object

[junocomp]

I started making some Inkscape icons a few days ago.

https://plus.google.com/+GiovanniCaligaris1/posts/Vms1phefzh1

I apologize, I'm not very git savvy. Here's a .tar of the work I've done so far.
https://1drv.ms/u/s!Ag3swdfzZLvHb2h1DTy4xQl2dT0

If you're interested, you can use most of my work if you like.