Create InterCatch format output from doEstimationForAllStrata() function

[davidcurrie2001]

Create a function that takes the output from doEstimationForAllStrata() and converts it into the InterCatch exchange format https://www.ices.dk/data/Documents/Intercatch/IC-ExchangeFormat1-0.pdf

[davidcurrie2001]

First version of function with tests and vignette added. doEstimationForAllStrata() doesn't produce numbers at length/age outputs so only HI and SI record types are currently created in the IC output.

[rix133]

I think the verbose flag could show what fields are needed and if they are mandatory (and want the options are) eg like:

if(verbose) {
    cat("HI table columns:\n")
    cat(paste0(HIdefinitions$Name, " = " , HIdefinitions$Type, "#required:", HIdefinitions$Mandatory , "\n"))
    cat("\n")
  }

also I think the definitions could benefit from columns like Mandatory and AcceptedValues
I think in the vignette some mandatory fields are left blank

[davidcurrie2001]

Updated function so that it also creates SD rows.
I've added in the "Mandatory" status, and you get a warning if one of these columns is missing. If you set verbose to TRUE you also get a message if any other columns are missing.
Currently I've assumed the function will be getting the data to format in 1 big data frame but this might not be the most sensible way of doing it - it might be better to have a separate input parameter for the age/length data