[roll third_party/pigweed] pw_console: PluginMixin and plugin infrastructure

- PluginMixin class for handling plugin background tasks and
  thread startup.

- plugins.rst containing the beginnings of how to author plugins.
  As example plugins are added this doc will be fleshed out more.

- Update PwConsoleEmbed with functions to add plugins:
  - add_window_plugins
  - add_top_toolbar
  - add_bottom_toolbar

- style.py: Add named color classes so plugins can easily make use
  of the current theme colors.

- checkbox.py: Make key legends on buttons optional for plugin
  authors.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/68681

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 3b4f89a26c4d16f..0a35c93e821fec5
Roller-URL: https://ci.chromium.org/b/8828373392458555297
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
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Change-Id: I1df5f02f9f23ebbd7677ff6b9f51b17b9e2b02db
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/72867
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1 file changed
tree: 1af80a25af87cb72c055080066eb3a1dd86264ad
  1. applications/
  2. build_overrides/
  3. pw_board_led/
  4. pw_board_led_arduino/
  5. pw_board_led_host/
  6. pw_board_led_stm32cube/
  7. pw_board_led_stm32f429i_disc1/
  8. pw_spin_delay/
  9. pw_spin_delay_arduino/
  10. pw_spin_delay_host/
  11. pw_spin_delay_stm32cube/
  12. pw_spin_delay_stm32f429i_disc1/
  13. pw_sys_io_stm32cube/
  14. targets/
  15. third_party/
  16. tools/
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. activate.bat
  22. banner.txt
  23. bootstrap.bat
  24. bootstrap.sh
  25. BUILD.gn
  26. BUILDCONFIG.gn
  27. env_setup.json
  28. navbar.md
  29. OWNERS
  30. PW_PLUGINS
  31. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.