Add support for passing state through nsRouterLink

[krunal-thakur]

Is your feature request related to a problem? Please describe.
RouterExtensions supports passing state object as part of NavigationExtras but nsRouterLink directive does not accepts such input

Describe the solution you'd like
If nsRouterLink accepts state as input and then if its passed to extras then we can access this object in next route using CurrentNavigation().extras.state

Describe alternatives you've considered
Alternative is to always route programmatically using RouterExtensions as we have full control over NavigationExtras object.

Additional context
This is important for Passing Data between Routes using nsRouterLink