Adapt module naming in feo

[kgraeper]

the module name of feo should be score_feo, to be aligned with all the other modules.

For 0.5 release this was already done here:
main...candidate_v0.5

also the references to other modules should be updated to reference the new naming schema. e.g.
score-baselibs -> score_baselibs
communication -> score_communication

[johannes-esr]

@kgraeper, do you know if there is any like "official" naming scheme for the modules in S-CORE?