Description

Refactored specified function names in R/pre-msa-tree.R and R/reverse_operons.R based on issue #7

R/pre-msa-tree.R Original	Modified	User Facing
RepresentativeAccNums	createRepresentativeAccNum	✅
write.MsaAAMultipleAlignment	writeMSA_AA2FA	✅
get_accnums_from_fasta_file	getAccNumFromFA	✅

R/reverse_operons.R Original	Modified	User Facing
reveql	straightenOperonSeq	✅
reverse_operon	reverseOperonSeq	✅

Fixes issue #52

What kind of change(s) are included?

[ ] Feature (adds or updates new capabilities)
[x] Bug fix (fixes an issue).
[ ] Enhancement (adds functionality).
[ ] Breaking change (these changes would cause existing functionality to not work as expected).

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