Set file as executable in module

[DamnClin]

Add the possibility to set a file as executable in modules (and to test it)

[pascalgrimaud]

about this subject, I should give a try to use git for changing the permission of the file, something like git update-index --chmod=-x path/to/file, so we are sure it will work for Windows

[DamnClin]

For now I just took the same code and put it into the module mechanism :) (because I need that for the init modules)

[pascalgrimaud]

yes sure, my idea should be tried in another PR, later (when removing jgit, as it's not supported by spring native)