Adding 1DView color lines, view annotations, line color labels.

Added the ability to color lines in 1DView. Added the ability to create a color legend for the lines in a 1DView. Added an annotations vector to the view class to allow an app to push labels to their views. Fixed a color table issue when creating a color table from a single color. Added the ability to add padding space around the exterior of your data in a plot, so that plot lines are not occluded by the axis lines.