Add capability to run testsuite with different dependencies versions.

Summary of changes:

• the "properties" and "dependencyManagement" sections from pom.xml were moved into resteasy-dependencies-bom/pom.xml
  *main project pom.xml imports resteasy-dependencies-bom in the current profiles
• new profile, activated by property, was added to the main project pom.xml to use EAP specific dependencies which will replace the default dependencies in case it gets activated
• common dependency junit was also moved from main project pom into each module that needs it, to have main project pom clean of dependencies/dependencyManagement and properties sections
• unused wildfly-security dependency for testsuite was removed, as the security domain configuration is now done by creaper
• See attachments for comparisons of old and new dependencies on the default profile