Distribution files does not have POSIX permissions perfectly set

The server provisioning copy (and extract) files in order to assemble the distribution based the information of the feature-pack.

While doing so on a POSIX system, it keeps the permissions of the original files, which are not always optimum (see JBEAP-12374). Specifically, .properties and .jar files are associated with the mask rw-rw-r-- giving access to it to any other and allowing group member to modify the file ;

On a "regular" Maven project, all of those changes could be specified in the assembly.xml, however in Wildfly cases, this is not really option because the provisioning-maven-plugin and feature-pack-build-maven-plugin are manipulating the content of the archive being built. Also, using assembly.xml would mean edit and update the 4 or 5 different assembly.xml in the project directory tree.

I plan thus to propose a fix for wildfly-build-tools to address all those (small) problems.