Expand description
Read a file and return all lines that match the "{crate}":{data}, format,
and return a tuple (Vec<DataString>, Vec<CrateNameString>).
This forms the payload of files that look like this:
var data = {
"{crate1}":{data},
"{crate2}":{data}
};
use_data(data);
The file needs to be formatted so that only crate data lines start with ".