read a gsi_sim formatted input file into a tibble that rubias can use

Note that this relies on a system call to awk. It probably won't work on Windows.

Usage

read_gsi_sim(path, sample_type, repunits = NULL)

Arguments

path

path to the gsi_sim file

sample_type

should be "reference" or "mixture" depending on what kind of file it is

repunits

the gsi_sim reporting units file. Has no effect if sample_type is "mixture". If sample_type is "reference" and this is left as NULL, then all collections will be put in the the "default_repu".