Allow additional arguments to set_axislabel through coord_params dict in ArrayAnimatorWCS

[wtbarnes]

Describe the feature

The set_axislabel method on a WCSAxes axis allows for passing in not just the label of the axis but also additional arguments such as the color of that label. However, the coord_params interface to set_axislabel only allows for passing the label and no other arguments

mpl-animators/mpl_animators/wcs.py

Line 182 in 32739c0

coord.set_axislabel(axislabel)

Proposed solution

Allow the axislabel entry in the coord_params dict to optionally be a dict and unpack it if it is. In this case, one of the entries of that dict would also have to be the axislabel.