lua: add requestInfo():dynamicMetadata() API#3800

Merged

mattklein123 merged 2 commits intoenvoyproxy:masterfrom

dio:lua-dynamic-metadata-api-1

Jul 23, 2018

Commits on Jul 12, 2018

lua: add requestInfo():dynamicMetadata() API
dio
committed

Commits on Jul 19, 2018

Merge remote-tracking branch 'upstream/master'
dio
committed