croupier: Modify Settings page to include Color and Image Picker

Made use of Flutter Dialog now that we have NavigatorStates.

Created 3 types of Dialogs
- Input Dialog
- Color Picker Dialog
- Image Picker Dialog

Unfortunately, none of these look like they can be reused, but it is not
yet clear what other values we will put inside Croupier Settings.

Change-Id: I335944bfeb592aba542917c8c2a8ed9cc05a7a30
3 files changed
tree: 8ee3f1f297addeaeaa566ad10cd9e31487885df3
  1. go/
  2. images/
  3. lib/
  4. test/
  5. .gitignore
  6. AUTHORS
  7. CONTRIBUTING
  8. CONTRIBUTORS
  9. LICENSE
  10. Makefile
  11. manifest.yaml
  12. PATENTS
  13. pubspec.yaml
  14. README.md
  15. VERSION
README.md

This is the basic Getting Started with Sky + some Widgets.

To run this, just do ./packages/sky/sky_tool start

when your phone is connected. Add --install to the end if this is the first run.

You may also want to debug any problems. Use dartanalyzer. dartanalyzer lib/main.dart