Adding missing examples

example/Vector/5_molecular_dynamic_sym/Makefile

+include ../../example.mk
+
+CC=mpic++
+
+LDIR =
+
+OBJ_DORD = main.o
+
+all: md_sym
+
+%.o: %.cpp
+	$(CC) -fext-numeric-literals -O3 -g -c --std=c++11 $(OPT) -o $@ $< $(INCLUDE_PATH)
+
+md_sym: $(OBJ_DORD)
+	$(CC) -o $@ $^ $(CFLAGS) $(LIBS_PATH) $(LIBS)
+
+run: md_sym
+	source $$HOME/openfpm_vars; mpirun -np 3 ./md_sym
+
+.PHONY: clean all run md_sym
+
+clean:
+	rm -f *.o *~ core md_sym
+