Add Fortmatic, Portis, Legder and Trezor pre-styled buttons

[samparsky]

Is your feature request related to a problem? Please describe. Additional pre-styled buttons apart from Metamask for Fortmatic, Portis, Legder and Trezor

Describe the solution you'd like Should have similar implementation to the current Metamask button.

Describe alternatives you've considered None

Additional context

[gesquinca]

@samparsky Can you provide more information on this?

Are you wanting this library to integrate more pre-styled buttons for Fortmatic, Portis, Legder and Trezor, or something else?

[samparsky]

Yes more pre-styled buttons for Fortmatic, Portis, Legder and Trezor

[gesquinca]

@samparsky Awesome, we'll add it to the backlog. Thanks for submitting this!