Rename function names in R/cleanup.R file

[Seyi007]

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

Original	Modified	User Facing
clean_string	cleanString
string2accnum	extractAccessionNumber
make_accnums_unique	ensureUniqueAccessionNumbers
cleanup_fasta_header	cleanFAHeaders
remove_empty	removeEmptyRows
repeat2s	condenseRepeatedDomains
replaceQMs	replaceQuestionMarks
remove_astrk	removeAsterisks
remove_tails	removeTails
cleanup_species	cleanSpecies
cleanup_clust	cleanClusters
cleanup_domarch	cleanDomainArchitecture
cleanup_gencontext	cleanGenomicContext
cleanup_GeneDesc	cleanGeneDescription
pick_longer_duplicate	selectLongestDuplicate
cleanup_lineage	cleanLineage

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.

[teddyCodex]

Hi @jananiravi @Seyi007 Can you assign this to me?

[jananiravi]

@teddyCodex @Seyi007, please use the updated names from #7.