core/dynprog.cpp: remove dead code
vidjil.cpp: default -r is now 5

On the default file, Vidjil now returns some clones even with default options.
vidjil.cpp, -c segment: uses multigermline

The CMD_SEGMENT scenario now tries the germlines in the multigermline (until the read is segmented).
tests: testing 'unable to segment' on some germlines when using -c -v -g