Enforce that all axis types are <: AbstractAxis

[asinghvi17]

As brought up in Slack just now. Still needs tests but works locally with GeoAxis.

One question that remains is what to do about polar axes. With the naive implementation here, draw(; axis = (; type = PolarAxis)) fails because the constructor tries to pass xlabel etc in the kwargs, which PolarAxis can't handle.

[asinghvi17]

Bump - is the best thing to do just a translate_to_axis(::AxisType, attrs) function or something?

[jkrumbiegel]

xlabel and ylabel just happen to be the names for dim1 and dim2 in Axis, for PolarAxis it's different. So maybe instead of translating from xlabel a previous step would just pick the correct label for a different type. One thing that will also be a bit wrong is that the aesthetics are called AesX and AesY. So then you'd have to do scales(X = ...) also for PolarAxis