[measurements] update LHCb B->K*mumu angular observables (#107)
[measurements] update LHCb B->K*mumu angular observables (#107)

* update to 2020 S obs and rearrange 2015 A and P obs

* udpate to 2020 P obs

* fix minus signs

* add inspire id
flav-io/flavio,flav-io/flavio