copy a BGZF
copy a BGZF with custom offset
copy a htsFile
copy a htsFile with custom offset
deep copy an hts_itr_t htslib really needs a copy/dup function for this
Copy a kstring_t
Returns tuple of String and ZBHO coordinates representing input string. Supports htslib coordinate strings. i.e chr1:1-10
create a kstring_t *