Missing SAML configurable parameters ResponseSkew and MaxAuthenticationAge

[fmaeseele]

Hi,

To be fully configurable and compliant, it would be great to be able to configure these two SAML parameters:

• ResponseSkew: Maximum time between authentication of user and processing of an authentication statement (default is 7200s).
• MaxAuthenticationAge: Tolerance applied for time comparisons between IDP clock and ServiceProvider system clock (default is 60s).

More documentation in Spring Security Framework:
https://docs.spring.io/spring-security-saml/docs/current/reference/html/configuration-advanced.html#time-interval

These two parameters are very usefull when there is some differences between the IDP clock and the SAML Service Provider system clock, or also when Azure IDP issue SAML token valid for a few days.

Regards.

[Revsgaard]

Feel free to make a pull request and I'll look into your code.