add option to use page path as a key

use builder instead of widget in AutoRoutePage
clean up some code

pomp up dart_style to version 2.0.1

Remove usesTabsRouter property from AutoRoute as it's no longer needed.

wip finilizing 0.6.2 release

Change the way routes are declared from class fields to a static list

Add support for path & query parameters
Add support for path wildcards
Add support for nested routes
Add support for generic result types
Add get ExtendedNavigator by name feature
Merge fix for adaptive route web support issue
Change generating arguments holder for single parameter routes is not optional anymore
Minor fixes and enhancements

Fix Android soft back button always exists App

- Change using ExtendedNavigator instead of the native Navigator

- Fix initial route does not go through guards
- Change generated router class is no longer static
- Change routes are generated in their own class now "Routers"
- Add option to generate navigation helper methods extension
- Update README file

- Add global route customization

Use MaterialAutoRouter, CupertinoAutoRouter or CustomAutoRouter instead of AutoRouter
- Navigator key is now accessed by calling Router.navigator.key instead of Router.navigatorKey.
- Add Route guards
- Add optional returnType param in all AutoRoute types.
- Remove generate Navigator Key optionality.
- Fix generate error when using dynamic vars in route widget constructors

- Add global route customization

Use MaterialAutoRouter, CupertinoAutoRouter or CustomAutoRouter instead of AutoRouter
- Navigator key is now accessed by calling Router.navigator.key instead of Router.navigatorKey.
- Add Route guards
- Add optional returnType param in all AutoRoute types.
- Remove generate Navigator Key optionality.
- Fix generate error when using dynamic vars in route widget constructors

Merge pull request Milad-Akarie#18 from Milad-Akarie/dev

v0.2.2

* add Route Wrapper

* add initial flag as a property in all route types
* change prefix const route names with class name.
* add fullscreenDialog property to @CustomRoute()