v3.0.0-beta.1

API changes:

• createOidcMiddleware() now only needs the userManager as an argument,
• OidcProvider now needs the userManager as a prop,
• no more childContext in OidcProvider,
• dropped shouldValidate - user is now always validated,
• dropped triggerAuthFlow - the sign in process now always needs to be started manually.

Internal changes:

• introduced co to handle the async nature of oidc-client and it's userStore.
• no more reliance on window.localStorage or window.location to support SSR & react-native.
• several smaller changes