Hi, I am quite new on this so i'd appreciate feedback.

I've been using this library for a bit to plot stuff for my fluid simulations, and I've noticed that it doesn't have much support for plotting vector fields. So, I quickly implemented a now plot type very similar to the ones I've used in Python's PyPlot. I tried to maintain the same style and functionality as the other plots, but some parts do appear hacky and I'd like feedback on it.

For now, it basically implements a Quiver Plot, with support to magnitude colour and size scaling, as well as custom ranges. I've already added the plot to the demo file for preview.

Please let me know what you think.