Support libraries & dependencies for Atsign's technology
Full Changelog: https://github.com/atsign-foundation/at_libraries/compare/v3.0.25...v3.0.27
at_contact
library by @yahu1031 in https://github.com/atsign-foundation/at_libraries/pull/131
Full Changelog: https://github.com/atsign-foundation/at_libraries/compare/v3.0.7...v3.0.25
Contains the source code for at_lookup: 3.0.7