[jboss-jira] [JBoss JIRA] (ELY-1636) Update AcmeChallenge.Type to be able to handle unknown challenge types

Update AcmeChallenge.Type to be able to handle unknown challenge types ---------------------------------------------------------------------- Key: ELY-1636 URL: https://issues.jboss.org/browse/ELY-1636 Project: WildFly Elytron Issue Type: Bug Components: API / SPI Reporter: Farah Juma Assignee: Farah Juma Update {{AcmeChallenge.Type}} to be able to handle newly introduced / unknown challenge types to avoid issues with {{AcmeChallenge.Type.forName()}} returning null if/when new challenge types are introduced.