Update rx_bloc and widget_toolkit ecosystems to support rxdart 0.28.0

[StanevPrime]

This ticket serves as an epic.

As a developer I want the rx_bloc package to have the maximum score in pub.dev - https://pub.dev/packages/rx_bloc/score

ACs:

• Follow Dart file conventions
• Support up-to-date dependencies
• Update the rx_bloc related packages
• Add topics for packages
• Update the rx_bloc example projects
  • Github search
    - [ ] ToDo App Will be addressed separately in Todo App UX improvements #762
  • Other example projects
• Update rx_bloc_cli package
  • Make use of the updated rx_bloc packages in the generated project
  • Update rxdart to 0.28.0 in the generated project
  • Update other dependencies in the generated project

Packages

Because some packages depend on other listed packages, the release cycle will proceed in a specific order from top to bottom.

rx_bloc ecosystem related packages ( #771 )

• rx_bloc
• rx_bloc_generator
• flutter_rx_bloc
• rx_bloc_test
• rx_bloc_list

widget_toolkit ecosystem related packages:

• widget_toolkit ( Update widget_toolkit and example project widget_toolkit#123 ) @DDavidPrime
  • widget_toolkit example project
• widget_toolkit_qr (Update widget_toolkit_qr widget_toolkit#124) @DDavidPrime
  • widget_toolkit_qr example project
• widget_toolkit_otp (Update widget_toolkit_otp and example project widget_toolkit#125) @DDavidPrime
  • widget_toolkit_otp example project
• widget_toolkit_biometrics (Update widget_toolkit_biometrics and widget_toolkit_pin widget_toolkit#126) @GoranPrime
  • widget_toolkit_biometrics example project
• widget_toolkit_pin (Update widget_toolkit_biometrics and widget_toolkit_pin widget_toolkit#126) @GoranPrime
  • widget_toolkit_pin example project

widget_toolkit ecosystem related packages:

• widget_toolkit package-related examples

rx_bloc_cli package ( #704 ) :

• rx_bloc_cli generated project

Manual tests

When performing manual tests for given packages, be sure to cover the following scenarios:

rx_bloc ecosystem related packages:

• booking app
• counter app
• reminders app
• favorites app
• flutter_rx_bloc example app
• rx_bloc example app

[StanevPrime]

@GoranPrime please proceed with the following packages once the widget_toolkit PR is merged

• widget_toolkit_otp
• widget_toolkit_biometrics
• widget_toolkit_pin

[StanevPrime]

@DDavidPrime please proceed with the following packages

• widget_toolkit
• widget_toolkit_qr