More MicroProfile in TomEE 8

[Roberto Cortez]

Hi,
I've been working on adding the MP specs into TomEE, using the Geronimo 
projects. 
In this PR, https://github.com/apache/tomee/pull/141, I've added the specs up 
to MP 1.2, that includes Fault Tolerance, JWT, Metrics, Health Check and Config.
There are a couple of failing tests in Metrics and Health Check, which I'm 
trying to fix. One is related with JSON-B.
Anyway, I plan to keep working on this and quickly move to MP 1.3.
Cheers,Roberto