Add tuff to cmake build

Author: milancurcic

test/CMakeLists.txt

@@ -1,3 +1,5 @@
+add_library(tuff tuff.f90)
+
 foreach(execid
   input1d_layer
   input2d_layer
@@ -27,7 +29,7 @@ foreach(execid
   metrics
   )
   add_executable(test_${execid} test_${execid}.f90)
-  target_link_libraries(test_${execid} PRIVATE neural-fortran ${LIBS})
+  target_link_libraries(test_${execid} PRIVATE tuff neural-fortran ${LIBS})
 
   add_test(NAME test_${execid} COMMAND test_${execid})
 endforeach()