Feature request: ability to ignore read groups

[holtjma]

Request for a flag that will enable a user to provide BAM files without a read group ID. Reads would have to be assumed to come from a single sample, so attempts at multi-sample would throw errors still.

Requested by @mrvollger via https://twitter.com/mrvollger/status/1654323827453865984

[holtjma]

This should resolve the issue, let me know if you have any questions about it!

https://github.com/PacificBiosciences/HiPhase/blob/main/docs/user_guide.md#how-do-i-fix-error-during-bam-read-group-parsing-bam-file-has-no-read-groups-rg-tag