HWKAPM-817 Add OT agent instrumentation rules for EJB

[objectiser]

[objectiser]

@pavolloffay @jpkrohling Could review please?

Notes:

• This PR includes basic instrumentation rules for demarcating Wildfly/EAP EJB usage. So is not a general EJB instrumentation approach - this could be investigated as a separate jira if there is a need (possibly using some additional class instrumentation outside byteman rules, leveraging the annotations).
• Currently no tests, as existing agent tests do not rely on a separate server to be launched. Not sure whether it is work adding a specific test for this, or other approach would be to produce an example that includes EJBs, and test it in the instrumentation framework? Has been manually tested currently.

[objectiser]

Agree automated is better, but depends whether we should have a set of tests that depend on a separate server to be launched (not sure how many of the agent rules would require this), or test by example (i.e. create a JEE example that incorporates EJBs, and verify the trace data using the instrumentation-test framework)?

If first option, we then have the choice between arquillian, which we haven't used so far, or just using the wildfly maven plugin?

[pavolloffay]

If it can be tested with arqullian, it's better than instrumentation-framework I think. At least faster.