Add parameter to /vcf REST endpoint to control whether or not VRS IDs are computed for reference alleles

[ehclark]

ga4gh/vrs-python#295 added a compute_for_ref parameter for VCF annotation. This parameter should be available as an option in the /vcf REST endpoint.

Computes VRS IDs for all REF and ALT alleles:

PUT /vcf

Computes VRS IDs for all REF and ALT alleles:

PUT /vcf?for_ref=True

Computes VRS IDs for all ALT alleles:

PUT /vcf?for_ref=False

[ehclark]

@korikuzma @jsstevenson @larrybabb
The changes for this and #71 require changes in vrs-python that have not been released. Is the correct thing to do here create a 2.0.0a2 version of vrs-python? And if so, how does that happen?

[korikuzma]

@ehclark To do this, we make a release on GitHub and that will trigger a GitHub action to make a pypi release. @larrybabb Is it okay if I go ahead and do this for @ehclark ?

[larrybabb]

Absolutely