Merge pull request #8184 from nicolasnoble/nanopb-code-drop

.gitmodules

third_party/nanopb

third_party/nanopb/.gitignore

third_party/nanopb/.travis.yml

third_party/nanopb/CHANGELOG.txt

third_party/nanopb/LICENSE.txt

third_party/nanopb/README.md

third_party/nanopb/docs/Makefile

third_party/nanopb/docs/concepts.rst

third_party/nanopb/docs/generator_flow.svg

third_party/nanopb/docs/index.rst

third_party/nanopb/docs/logo/logo.png

third_party/nanopb/docs/logo/logo.svg

third_party/nanopb/docs/logo/logo16px.png

third_party/nanopb/docs/logo/logo48px.png

third_party/nanopb/docs/lsr.css

third_party/nanopb/docs/menu.rst

third_party/nanopb/docs/migration.rst

third_party/nanopb/docs/reference.rst

third_party/nanopb/docs/security.rst