[voila] add a testing session shell

This patch adds a miminal testing session shell implementation, which
only displays "Hello, world" on the screen. It can be used to verify
that view integration is working correctly across Voila and sessionmgr
(catching issues such as LE-746). In a subsequent CL we'll add an SL4F
test based on it.

LE-746

Test: `fx shell tiles_ctl add fuchsia-pkg://fuchsia.com/voila_tests#meta/session_shell.cmx`
Change-Id: Icf5c72c37da1c334ea55af456d106230920c39c2
5 files changed
tree: 43cde07db20a7385b1dbada017580e147f9b8bf9
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. infra/
  9. peridot/
  10. products/
  11. scripts/
  12. sdk/
  13. src/
  14. third_party/
  15. tools/
  16. zircon/
  17. .clang-format
  18. .clang-tidy
  19. .dir-locals.el
  20. .gitattributes
  21. .gitignore
  22. .gn
  23. AUTHORS
  24. BUILD.gn
  25. CODE_OF_CONDUCT.md
  26. CONTRIBUTING.md
  27. LICENSE
  28. OWNERS
  29. PATENTS
  30. README.md
  31. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See the documentation.