[WFCORE-7033] signature verification

[spyrkob]

JIRA: https://issues.redhat.com/browse/WFCORE-7033

[spyrkob]

@yersan this is not a complete PR yet, but could you take a quick look at this and let me know if you're happy with this approach?

[wildfly-ci]

Core -> Full Integration Build 14286 outcome was FAILURE using a merge of 0154a29
Summary: Exit code 1 (Step: Build core (Maven)) (new) Build time: 00:01:57

[wildfly-ci]

Core -> Full Integration Build 13992 outcome was FAILURE using a merge of 0154a29
Summary: Exit code 1 (Step: Build core (Maven)) (new) Build time: 00:01:25

[wildfly-ci]

Core -> WildFly Preview Integration Build 14063 outcome was FAILURE using a merge of 0154a29
Summary: Exit code 1 (Step: Build core (Maven)) (new) Build time: 00:01:50

[wildfly-ci]

Core -> WildFly Preview Integration Build 14072 outcome was FAILURE using a merge of 2106ab7
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:35

[wildfly-ci]

Core -> Full Integration Build 13999 outcome was FAILURE using a merge of 2106ab7
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:39

[wildfly-ci]

Core -> Full Integration Build 14293 outcome was FAILURE using a merge of 2106ab7
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:47

[yersan]

Added some comments with a quick look, I have not played with this yet, but overall approach looks good

[wildfly-ci]

Core -> WildFly Preview Integration Build 14085 outcome was FAILURE using a merge of 673d837
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:10

[wildfly-ci]

Core -> Full Integration Build 14306 outcome was FAILURE using a merge of 673d837
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:33

[wildfly-ci]

Core -> Full Integration Build 14012 outcome was FAILURE using a merge of 673d837
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:47

[wildfly-ci]

Core -> WildFly Preview Integration Build 14086 outcome was FAILURE using a merge of 3158ecd
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:00:58

[wildfly-ci]

Core -> Full Integration Build 14307 outcome was FAILURE using a merge of 3158ecd
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:25

[wildfly-ci]

Core -> Full Integration Build 14013 outcome was FAILURE using a merge of 3158ecd
Summary: Exit code 1 (Step: Build core (Maven)) Build time: 00:01:33

[spyrkob]

Thanks @yersan! I updated the PR with your comments and made a few changes to work with the Web Console a bit easier. I'll create the wildfly-proposal and mark this as ready for review when that's ready