cram: Inconsistent descriptions of auxiliary tag types

[athos]

When I was going through the CRAM spec, I found some seemingly inconsistent descriptions of auxiliary tags with the SAM/BAM spec:

• Section 8.4 in the CRAM spec has a description like the following, but a tag type F is not defined in the SAM/BAM spec

  tag id followed by BAM tag type code (one of A, c, C, s, S, i, I, f, F, Z, H or B, as described in the SAM specification). (link)

• Section 10.5 in the CRAM spec is missing a description for tag type A, which is defined in the SAM/BAM spec, while the same section has a statement saying "... and type is one of the permitted types documented in the SAM/BAM specification"

[jkbonfield]

Both of those look like typos or just oversight. I can confirm the htslib implementation doesn't use tag type F and that A is support.

Thanks for reporting this.