[components][sandbox] Replace Connector protocol with a token

Right now, there are there types associated with [Connector]:

- ConnectorCapability: the token
- Connector: the client end, obtained from [ConnectorCapability], served
  by component_manager
- Receiver: the server end, served by the provider component.

To obtain a channel from a Connector, you have to do the following:

- Factory/OpenConnector(ConnectorCapability) -> Connector
- Connector/Open -> zx.CHANNEL

We can reduce this to one step and eliminate the Connector protocol:

- Factory/OpenConnector(ConnectorCapability) -> zx.CHANNEL

Finally, since there is no more Connector protocol, we can rename
ConnectorCapability -> Connector.

Fixed: 339513422
Change-Id: I27fa86c67e876eb621bc97738f43b71b882c0725
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1046552
Reviewed-by: David Gilhooley <dgilhooley@google.com>
API-Review: Gary Bressler <geb@google.com>
Commit-Queue: Gary Bressler <geb@google.com>
5 files changed
tree: 53863f26f63d61a300d0471ab87e167b9bdf494f
  1. boards/
  2. build/
  3. bundles/
  4. docs/
  5. examples/
  6. infra/
  7. products/
  8. scripts/
  9. sdk/
  10. src/
  11. third_party/
  12. tools/
  13. zircon/
  14. .clang-format
  15. .clang-tidy
  16. .editorconfig
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gitmodules
  21. .gn
  22. .ignore
  23. analysis_options.yaml
  24. AUTHORS
  25. BUILD.gn
  26. CODE_OF_CONDUCT.md
  27. CONTRIBUTING.md
  28. fuchsia.code-workspace
  29. LICENSE
  30. OWNERS
  31. PATENTS
  32. pyproject.toml
  33. pyrightconfig.json
  34. README.md
  35. rustfmt.toml
  36. shac.star
  37. shac.textproto
README.md

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