Rearrange FORMAT field
Rearrange FORMAT field

    For improved readability, move the 'AD' and 'AF' fields
    to the front of the FORMAT column.

    Update comments of example VCF lines by moving
    the 'AD' and 'AF' fields to the front of the
    FORMAT and sample columns.

    To provide more precise information, divide the
    'INDEL' field into two separate 'INS' and 'DEL' fields.

    Update comments of example VCF lines by converting
    the 'INDEL' field into two separate fields 'INS' and
    'DEL'.

    Removed obsolete code.

aradenbaugh/radia