[element_manager] Allow using Realm from parent

This CL changes the semantics of the `element_manager`
component to use the `fuchsia.component.Realm` protocol
from parent instead of from framework. This is done in order
to enable product variability of the capabilities routed to
the elements collection. Furthermore, the name of the collection
itself is now configurable using structured configuration.

In order to aid a soft transition, a component with the old
semantics and name will be kept until downstream users are moved
to using the new component.

Bug: 95841
Bug: 100933
Change-Id: I7ce6da279058475b8afc84b4929a3cba2eaf4670
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/691451
Reviewed-by: John Shamoon <johnshamoon@google.com>
Reviewed-by: Yegor Pomortsev <ypomortsev@google.com>
Commit-Queue: Yaneury Fermin <yaneury@google.com>
7 files changed
tree: 0f34e4edab4615a21b5a4bc18190f639473d2f71
  1. boards/
  2. build/
  3. bundles/
  4. docs/
  5. examples/
  6. products/
  7. scripts/
  8. sdk/
  9. src/
  10. third_party/
  11. tools/
  12. zircon/
  13. .clang-format
  14. .clang-tidy
  15. .editorconfig
  16. .git-blame-ignore-revs
  17. .gitattributes
  18. .gitignore
  19. .gn
  20. .style.yapf
  21. analysis_options.yaml
  22. AUTHORS
  23. BUILD.gn
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. OWNERS
  28. PATENTS
  29. pyrightconfig.json
  30. README.md
  31. rustfmt.toml
README.md

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