Rename functions in R/CHANGED-pre-msa-tree.R file

[Seyi007]

          [R/CHANGED-pre-msa-tree.R](https://github.com/JRaviLab/MolEvolvR/blob/main/R/CHANGED-pre-msa-tree.R)

Original	Modified	User Facing
convert_aln2fa	convertAlignment2FA
to_titlecase	convert2TitleCase
add_leaves	addLeaves2Alignment
generate_all_aln2fa	generateAllAlignments2FA
convert_aln2tsv	convertAlignment2TSV
convert_accnum2fa	convertAccNum2FA
add_name	addName
map_acc2name	mapAcc2Name
rename_fasta	renameFA
acc2fa	acc2FA

Originally posted by @the-mayer in https://github.com/JRaviLab/MolEvolvR/issues/7#issuecomment-2394795045

All update 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 Please assign to me as well.

[jananiravi]

@teddyCodex @Seyi007, again, make sure you're using the updated names from #7.

[the-mayer]

Fixed w #57