Standardize parameter names

[rportilla-databricks]

For example, the asofJoin parameters do not follow the same convention. Fix this across the project.

[souvik-databricks]

Hi @rportilla-databricks
Not only the parameters we have to fix the docstrings across the projects also. For now we have this note showing in our docs saying that we are working on them but I got customers already asking about by when can we see those fixed.

As you can see that we have added the note saying that the standardisation is happening and they will be updated soon.
And what I mean by fixing is just like the picture we have __appendAggKey in proper RST but aggregate as we see is not rendering like that.