Release v0.28.0

ADDITIONS

• feat: add /crypto endpoint and extract digital currency addresses from OFAC
• feat: add SEARCH_MAX_WORKERS

IMPROVEMENTS

• build: fix npm build for Openshift
• build: force latest stable Go when building docker images
• fix: accumulate SDN comments for merging overflow after all files are read
• fix: allocate known-capacity arrays
• fix: copy extended remarks from sdn_comments.csv
• largest: improve performance, simplify insert step

BUILD

• build(deps): bump golang.org/x/crypto from 0.15.0 to 0.17.0