Dataset. This object contains chromosome, position, chip SNP labels,
SNP rs-ids, for immunochip, plus allele codes based on a UVA/Sanger
T1D dataset, which should be updated for use with a different dataset
with different allele coding (however the position and rs-id information
should still be applicable.
The data is in build 37 coordinates as a ChipInfo object, but using functions
convTo36 or convTo38 from the humarray package can easily convert this to
build 36 or 38.