Info & QA Records
Exodus files can carry free-form metadata records: info records (arbitrary lines of text) and QA records (a structured log of which programs have processed the file).
Info records
write_info(exo, ["info entry 1", "info entry 2", "info entry 3"])
info = read_info(exo) # Vector{String}QA records
A QA record is a num_records x 4 matrix of strings; each row is typically [code_name, code_qa_descriptor, date, time].
write_qa(exo, qa_record) # qa_record::Matrix{String}, size (n, 4)
qa = read_qa(exo)