[revert][scenic] Cleanup dev tools; allow short pkg-names

This reverts commit 94b40578dd6060c95e878649864bb742072dedd3.

Reason for revert:

This breaks developers and SDK customers working on components with
schemes other than fuchsia-pkg://

Original change's description:
> [scenic] Cleanup dev tools; allow short pkg-names
>
> Convert these tools usage information to be more in-line with other
> developer tools.
>
> Test: Ran tiles, present_view, set_root_view;
>   used arguments:
>   --h
>   noodles
>   fuchsia-pkg://fuchsia.com/noodles#meta/noodles.cmx
>
> Change-Id: I44a0ee8d528078283f59aa42c1f7ac74aa5ee5b2

TBR=jjosh@google.com,mikejurka@google.com,jaeheon@google.com,dworsham@google.com,adamgousetis@google.com

Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I0dafb137581dd595b009f2f318cea2092021d56d
8 files changed
tree: ca96a31944436989d3de71b8f1f7f33242d32748
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. peridot/
  9. products/
  10. scripts/
  11. sdk/
  12. src/
  13. third_party/
  14. tools/
  15. zircon/
  16. .clang-format
  17. .dir-locals.el
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. AUTHORS
  22. BUILD.gn
  23. CODE_OF_CONDUCT.md
  24. CONTRIBUTING.md
  25. LICENSE
  26. OWNERS
  27. PATENTS
  28. README.md
  29. 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.