User Recipe in Plots.jl

[henry2004y]

There is a extremely powerful user recipe in Plots.

• Repeatly using the same GKSTerm on Mac will display only white backgrounds in the end.
• By default Plots uses gr() backend. The GR backend contour plot only accept vector x,y!
• There is already a UnitfulRecipes.jl that provides the capability of auto-displaying units in figure labels, and it works smoothly with my user recipe. Amazing.
• I have already built a customized package UnitfulBatsrus.jl and set it as a dependency for VisAna. Instead of the usual u"km/s" notation, we just need to use bu"amucc". Now this part becomes a submodule within Batsrus.jl, mainly because a registered package cannot depend on an unregistered package.