vidjil.cpp: FineSegmenter in -c clones also considers e-value
Follows what is done for D in e6ffb915, and what was already done for V/J in -c segment. Even if it may be counter-intuitive, the results of segmentation thus actually depends on the number of reads: '-e 1' should mean that we expect one false positive segmentation in the output. Even if some e-values slightly change, this commit does not affect the results of the tests. We should investigate what happens when a FineSegmenter fails here. Moreover, is it sane to have the same '-e' paramater for fixing both e-values of Kmer and FineSegmenter? Or should we rather have another paramater?