DOC: annotate_* plot methods docstrings and implementation need an overhaul

[neutrinoceros]

Most of these methods support passing arbitrary keyword arguments over some matplotlib API via **kwargs. However, their docstrings often doesn't mention exactly where these arguments are passed to, which hurts discoverability, and forces users to inspect the source code we could redirect them to matplotlib's documentation instead.
There's also room left to improve API consistency by generalising the **kwargs pattern a bit further.

I have already started working on this as a side effect of improving some of the annotation methods lately. This issue will help tracking what needs to be done.

• VelocityCallback, MagFieldCallback, QuiverCallback and CuttingQuiverCallback-> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.quiver.html#matplotlib.axes.Axes.quiver
• ENH: add support for passing arbitrary kwargs for axes.contours in annotate_contour #4460 (ContourCallback)
• ENH: add support for passing field keys for colors and linewidth in streamline plot annotations #4455 (StreamlineCallback)
• LinePlotCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.plot.html#matplotlib.axes.Axes.plot
• ClumpContourCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.contour.html#matplotlib.axes.Axes.contour
• ArrowCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.arrow.html#matplotlib.axes.Axes.arrow
• MarkerAnnotateCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.scatter.html#matplotlib.axes.Axes.scatter
• MeshLinesCallback and TriangleFacetsCallback -> matplotlib.collections.LineCollection
• RayCallback (dispatches to LineCallback and ArrowCallback)

some callbacks accept 2 dicts of arbitrary arguments, one of which could be deprecated in favour of the **kwargs pattern

• GridBoundaryCallback
• TextLabelCallback
• TimestampCallback
• ScaleCallback
• LineIntegralConvolutionCallback
• CellEdgesCallback
• SphereCallback

some currently re-expose a subset of args and aren't yet natively extensible using **kwargs, which should be changed:

• ParticleCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.scatter.html#matplotlib.axes.Axes.scatter
• TitleCallback -> https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_title.html#matplotlib.axes.Axes.set_title