Efficient Neural Network Loss Landscape Generation

This brings a wide spectrum of the Julia stack together and underlines the inherent interoperability of Julia solutions:

Flux - Elegant Machine Learning Stack

Makie - High level plotting on the GPU

CuArrays - GPU arrays without code changes

WebSockets - Websockets protocol in Julia

WebIO - Simple abstraction for displaying and interacting with content

Nextjournal - Making this reproducible online

Cool article!

In Makie, you can efficiently put a label on a slider by using

`sliderplot, observable = AbstractPlotting.textslider(range, label, start = startvalue)`

where sliderplot is the actual Scene object and observable is the value of the observable.