B2C: Share the session between the two policies(SignIn, Change Password)

## Issue

Hi All,

I am using the Azure B2C for the authentication, I have a use case about to login with signin policy and that session needs to pass in the change password policy when user trying to updating the password.

As of now, when opening the change password policy, getting the `SSO does not exist` issue.

So, I need to know how I can pass the sign in policy session to change password policy in this library.

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## Environment

* **Your Identity Provider**: `Azure B2C`
* **Platform that you're experiencing the issue on**: `both`
* **Your `react-native` Version**: `0.68.3`
* **Your `react-native-app-auth` Version**: `7.1.2`
* **Are you using Expo?** Nope.