[a11y] (5/8)Move Semantics & Settings Manager to lib/

This is the CL-5 in the long chain(Total 8) of CLs. This cl depends on
https://fuchsia-review.googlesource.com/c/fuchsia/+/302018 for review.

This cl does following things:
1. moves code of semantics manager from bin/a11y_manager/semantic/ to lib/semantics/
2. moves code of settings manager from bin/a11y_manager/settings/ to lib/settings/
4. moves code of util from bin/a11y_manager/ to lib/util/
5. Updates BUILD files to support step 1 and 2.
6. Moved tests for semantics manager and settings manager from
a11y/tests/integration to a11y/lib/semantics/tests and
a11y/lib/settings/tests respectively.
7.Update Build files in lib/ so that "fx run_test a11y_lib_tests" will
also run tests for semantics/ and settings/

To run new tests: fx run_test a11y_lib_tests
This will run tests for semantics manager, settings manager, tts,
gesture, etc.

MI4-2643 #comment

Testing:
  * Build: Passed
  * Unit Test:
       fx run_test a11y_lib_tests (Passed)
       fx run_test a11y_tests     (Passed)

Change-Id: I7d74ded49c34bd65ac0307567b7f76738487d255
60 files changed
tree: a791022d4972004d62e7e0be1768936d7347c68d
  1. .clang-format
  2. .clang-tidy
  3. .dir-locals.el
  4. .gitattributes
  5. .gitignore
  6. .gn
  7. .style.yapf
  8. AUTHORS
  9. BUILD.gn
  10. CODE_OF_CONDUCT.md
  11. CONTRIBUTING.md
  12. LICENSE
  13. OWNERS
  14. PATENTS
  15. README.md
  16. boards/
  17. build/
  18. bundles/
  19. docs/
  20. examples/
  21. garnet/
  22. peridot/
  23. products/
  24. rustfmt.toml
  25. scripts/
  26. sdk/
  27. src/
  28. third_party/
  29. tools/
  30. zircon/
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 fuchsia.dev.