[OPENENGSB-3835] Kickoff: UserProjects file-based connector
[OPENENGSB-3836] Provide file access functionality
[OPENENGSB-3837] File-based userprojects connector should sync at the
beginning
[OPENENGSB-3839] Integrate file-based userprojects connector into the
framework
[OPENENGSB-3841] Changes in the userprojects files should be
synchronized into the bus