WIP: changes to support OpenID Connect RP-Initiated Logout 1.0 + Keycloak 17/18+#1049

wetted wants to merge 3 commits into5.0.xmicronaut-projects/micronaut-security:5.0.xfrom

Issue-1024-1045-Keycloak18micronaut-projects/micronaut-security:Issue-1024-1045-Keycloak18Copy head branch name to clipboard