Line styles for routes (dotted, dashed)

Add support to xml model for extra attribute 'lineStyle'

Console: support more than just strings
Route: method to return the stroke styling given the route lineStyle
Segment: draw with style as specified in route object
Styles: add dash, dot styles; give stnd style dasharray of "" to clear
PaletteView: form gui for line style; and update in edit mode

Signed-off-by: Dean Rollins <deano.dinosaur@gmail.com>
Start work on left/right abseil symbols

Add gui elements and draw code skeleton, still need symbol svg code/path.

Signed-off-by: Dean Rollins <deano.dinosaur@gmail.com>
Dev page now has dotted, dashed, lower-left/right entities by default

Signed-off-by: Dean Rollins <deano.dinosaur@gmail.com>
todo updated

Signed-off-by: Dean Rollins <deano.dinosaur@gmail.com>
Raphael hack/fix for dotted lines...

Signed-off-by: Dean Rollins <deano.dinosaur@gmail.com>