Removed the constants.boot package
Removed unused dependency to constants.conf
Set the Apache license header to Java files

Also applied code format to all modified files
Removed compilation of base.ui

org.psem2m.isolates.base.ui is a dummy project to trick Eclipse PDE,
letting it believe that a bundle exports javax.swing packages.
=> it doesn't have to be compiled with Maven, as it is only a PDE trick.
Moved org.psem2m.isolates.base.ui to dummy.packages.ui

This avoids to consider org.psem2m.isolates.base.ui as a "real" bundle
Added Cohorte Remote Services dependency

-> Used by the Isolate Composer