Add an id field to read alignment
Add an id field to read alignment

This id field helps callers disambiguate between reads from different API responses. This field was in v0.1, and the 3 implementors all have it - so hopefully it should be okay to keep it around. (and it's just like all of our other object ids)
buske/schemas,diekhans/ga4gh-schemas,hjellinek/schemas,laserson/schemas,delagoya/schemas,Jeltje/ga4gh-schemas,adamnovak/schemas,lh3/schemas,adamnovak/schemas,nlwashington/schemas,nlwashington/schemas,Jeltje/ga4gh-schemas,dglazer/schemas,kellrott/schemas,ga4gh/schemas,heuermh/ga4gh-schemas,hjellinek/schemas,pcingola/schemas,laserson/schemas,benedictpaten/schemas,macieksmuga/schemas,sarahhunt/schemas,dnanexus-rnd/schemas,ga4gh/ga4gh-schemas,kellrott/schemas,saupchurch/schemas,dnanexus-rnd/schemas,lh3/schemas,sarahhunt/schemas,hjellinek/jeltje-schemas-sphinx,buske/schemas,delagoya/schemas,benedictpaten/schemas,dcolligan/schemas,diekhans/ga4gh-schemas