R function to check output

@ChristineStawitz-NOAA had a great idea to create an R function to check terms used in model output. I am guessing this would search through names and column headers in a list object or maybe through a raw text file? The function would then summarize the use of alternative terms versus suggested terms. For example is "spawning stock biomass" used instead of "spawning biomass". Additional functionality could come from other R functions that "convert" column headers of alternative terms to use suggested terms.

No implementation file or test is identified. Start by resolving whether the function accepts list objects, raw text files, or both, and define how it reports alternative versus suggested terms; done should include agreed behavior for checking and optionally converting column headers.