tests: update tests, 'segments' -> 'reads'

algo/tests/clones_lec.should_get

@@ -4,7 +4,7 @@ $ Extract 50bp windows (TRG)
 1:found . 50-windows
 
 $ Find the good number of windows
-1: found 2 .* in 4 segments .* inside 7 sequences
+1: found 2 .* in 4 reads .* 7 reads
 
 $ Find the good statistics on TRG
 1: TRG .* -> .* 7 .* 84.0 .* 2 .* 2.0

algo/tests/clones_simul.should_get

 !LAUNCH: ../../vidjil -k 14 -w 50 -c clones -G ../../germline/IGH -y 3 -z 1 -r 1 ../../data/clones_simul.fa
 
 $ Junction extractions
-1:found 25 50-windows in 66 segments
+1:found 25 50-windows in 66 reads
 
 $ No clustering
 1:==> 25 clones

algo/tests/clones_simul_cluster.should_get

 !LAUNCH: ../../vidjil -k 14 -w 50 -c clones -G ../../germline/IGH -y 3 -z 1 -r 1 -n 5 ../../data/clones_simul.fa
 
 $ Window extractions
-1:found 25 50-windows in 66 segments
+1:found 25 50-windows in 66 reads
 
 $ Some clustering
 1:==> 2 clusters

algo/tests/stanford-X100-sampled.should_get

@@ -4,4 +4,4 @@ $ Skip the good number of reads
 1:Processing every 131th read
 
 $ Analyze the good number of reads
-1: found 100 ..-windows in 100 segments .100.. inside 100 sequences
+1: found 100 ..-windows in 100 reads .100. of 100 reads

algo/tests/stanford-k14.should_get

@@ -11,4 +11,4 @@ $ Parses germline/IGHJ.fa
 1: 701 bp in  13 sequences
 
 $ Find the good number of windows in Stanford S22 (contiguous seed 14)
-1: found 10743 50-windows in 13114 segments
+1: found 10743 50-windows in 13114 reads

algo/tests/stanford-w100.should_get

@@ -8,4 +8,4 @@ $ Find the good number of segmented sequences (including "too short sequences")
 1: junction detected in 13148 reads .100%.
 
 $ Find the good number of windows of size 100 in Stanford S22
-1: found 9800 100-windows in 10931 segments
+1: found 9800 100-windows in 10931 reads

algo/tests/stanford-x100-first.should_get

 !LAUNCH: ../../vidjil -x 100 -G ../../germline/IGH ../../data/Stanford_S22.fasta
 
 $ Analyze the good number of sequences in Stanford S22 
-1: found 98 ..-windows in 99 segments .99.. inside 100 sequences
+1: found 98 ..-windows in 99 reads .99. of 100 reads

algo/tests/stanford.should_get

@@ -16,5 +16,5 @@ $ Find approximately the good number of sequences for e-value computation
 1: approx. 131.. sequences
 
 $ Find the good number of windows in Stanford S22
-1: found 10732 50-windows in 13138 segments
+1: found 10732 50-windows in 13138 reads