Included coupled assembly in cmake

src/coupled/CMakeLists.txt

 add_subdirectory(transfers)
+add_subdirectory(discretizations)
+add_subdirectory(assemble)
 add_subdirectory(solvers)
 
 add_library(COUPLED

src/coupled/solvers/CMakeLists.txt

@@ -3,4 +3,4 @@ add_library(COUPLED_SOLVERS STATIC
         SegregatedSolver.cpp
         )
 
-target_link_libraries(COUPLED_SOLVERS COUPLED_TRANSFERS ELASTICITY_SOLVERS ELPHY_SOLVERS)
\ No newline at end of file
+target_link_libraries(COUPLED_SOLVERS COUPLED_ASSEMBLE ELASTICITY_SOLVERS ELPHY_SOLVERS)
\ No newline at end of file