Replace the function names in R/plotme.R

[Seyi007]

          [R/plotme.R](https://github.com/JRaviLab/MolEvolvR/blob/main/R/plotme.R)

Original	Modified	User Facing
count_to_sunburst	plotSunburst
count_to_treemap	plotTreemap
create_all_col_params	prepareColumnParams
create_one_col_params	prepareSingleColumnParams
assert_count_df	validateCountDF
all_non_n_cols_to_char	.all_non_n_cols_to_char	✔️

Originally posted by @the-mayer in #7 (comment)

All updates should follow this format:

Original	Modified	User Facing
original_function	newFunction	✅

NOTE: Before beginning to work on a particular file, please check to see that @jananiravi has given the 👍 on the comment.

Please follow the contributing guidelines and create a new branch containing your changes. Commit your work, and submit a PR when ready for review.

Additionally, use the search in all files functionality in VS code, Rstudio, or any other text editor, and list all files the function is being called or used to be updated later.

[jananiravi]

#notetoself @the-mayer, we need to figure out what these prepareXYZ functions are doing. The function names seem a bit vague.

[teddyCodex]

#notetoself @the-mayer, we need to figure out what these prepareXYZ functions are doing. The function names seem a bit vague.

Not sure if this is helpful @jananiravi but all these functions (except all_non_n_cols_to_char) appear to be user-facing. They all appear in the NAMESPACE file.

create_all_col_params - appears to be designed to generate a set of parameters based on the columns in a data frame (count_data)
create_one_col_params - appears to processes a specific column (col_num) in a data frame (df) to generate parameters such as ids, parents, labels, values, and hovertext.

[the-mayer]

Just a note, eventually we will be reducing the number of exports for MolEvolvR.
Currently, it exports more functions than a user will be expected to use. Eventually this will be tackled in another series of issues.

At current, the NAMESPACE file is not the definitive source of truth for what will be exported in the release version of MolEvolvR .