carto/protobuf @ revert-5758-delete-blank

Paul Yang e5c083ed6c Revert "delete all duplicate empty blanks (#5758)"		%!s(int64=7) %!d(string=hai) anos
..
linux	e5c083ed6c Revert "delete all duplicate empty blanks (#5758)"	%!s(int64=7) %!d(string=hai) anos
macos	c3340b20a8 Add ruby 2.6 gem build for linux (#5537)	%!s(int64=7) %!d(string=hai) anos
release	e5c083ed6c Revert "delete all duplicate empty blanks (#5758)"	%!s(int64=7) %!d(string=hai) anos
README.md	6156af10e8 Add MacOS and Linux tests to Kokoro	%!s(int64=8) %!d(string=hai) anos

Kokoro Infrastructure

The files in this directory serve as plumbing for running Protobuf tests under Kokoro, our internal CI.