[feat] Automate checking if chunks are already made in the figures/tables docs

[Schiano-NOAA]

[sbreitbart-NOAA]

Is this a duplicate of #451 ?

[Schiano-NOAA]

No haha I was getting confused earlier but these are different. This issue is looking if the figure/table if already incorporated vs #451 is checking if there is the same label made say if they are doing comparisons of models, but the figure gets labelled the same. Does that make sense?

Maybe they should just be the same development, but different issues