Allow options like max (age) to be passed from issueFor() to issue()

[gatos-jd]

https://github.com/solid/oidc-rp/blob/dcae9cbb484f2aa9b913bd6e7db8ab8d98373186/src/PoPToken.js#L36

solid-auth-client uses issueFor() to generate a PoPToken. There appears to be no way to pass the max option through issueFor() to issue() to change the default age of the token generated from DEFAULT_MAX_AGE to anything else.

In general, it would probably be good to have a version of issueFor() that takes an option hash and passes the values through to the issue() call.

[dmitrizagidulin]

👍 agreed.