Adds a simple hello-world example for GCP Observability purposes along
with a README.
The microservices observability user guide is not yet up, but this still
refers to it anyway.
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* Revert "Revert "Add support for systemd socket activation (#30485)" (#31617)"
This reverts commit 867dc6cae2.
* Add checks to unix tests
* Ran generate_projects.sh and fixed styling in test
* Fix variable in unit test
* Use reinterpret_cast in test
* Rebase and fix sanity failures
* Add bazel cpp distribtest for grpc_cc_library
* Add new directory to bazelignore
* Try changing to workspace differently
* Debug cd
* Fix bazel wrapper
* Yet more debug
* Try again
* Clean up
* Sanity fixes
* Run per-language distribtests even if overall build fails
-) Fixing Bazel 0.4.x breakage
-) Adding helloworld BUILD examples
-) Fixing grpc++ missing files.
-) Adding helloworld example as a test for Bazel basic.
Yash Tibrewal
Andres Beltran
Richard Belleville
Vijay Pai
Donna Dionne
Jan Tattermusch
Nicolas "Pixel" Noble
Ryan
Yuchen Zeng
Julien Boeuf
Craig Tiller
David Garcia Quintas
yang-g
Stanley Cheung
murgatroid99