Add FastTreeMP installation

for_tests/Dockerfile

@@ -57,4 +57,11 @@ RUN wget https://mafft.cbrc.jp/alignment/software/mafft-7.313-with-extensions-sr
 WORKDIR /tmp/mafft-7.313-with-extensions/core
 RUN make clean &&\
     make &&\
-    make install
\ No newline at end of file
+    make install
+
+# Install FastTree
+WORKDIR /tmp
+RUN wget http://www.microbesonline.org/fasttree/FastTree.c &&\
+    gcc -DOPENMP -fopenmp -DUSE_DOUBLE -Wall -O3 -finline-functions -funroll-loops -o FastTreeMP FastTree.c -lm &&\
+    ln -s /tmp/FastTreeMP /usr/local/bin
+