Write docs for all custom created enums in the library

[MarvKler]

e.g. "Axis" enum

[emanlove]

This might be a robot doc issue but reading the keyword doc for "Get Table" it is unclear the options include 'List of dicts' and 'Dataframe'. Seemed as if this issue was focused on tryuing to make the enums, like TableFormat, a bit clearer .. so added here.