restore cmakelists.txt

tests/CMakeLists.txt

@@ -1,6 +1,49 @@
 # The tests that need to be compiled.
 set(ENSMALLEN_TESTS_SOURCES
     main.cpp
+    ada_bound_test.cpp
+    ada_delta_test.cpp
+    ada_grad_test.cpp
+    adam_test.cpp
+    aug_lagrangian_test.cpp
+    bigbatch_sgd_test.cpp
+    callbacks_test.cpp
+    cmaes_test.cpp
+    cne_test.cpp
+    de_test.cpp
+    eve_test.cpp
+    frankwolfe_test.cpp
+    ftml_test.cpp
+    function_test.cpp
+    gradient_descent_test.cpp
+    grid_search_test.cpp
+    iqn_test.cpp
+    katyusha_test.cpp
+    lbfgs_test.cpp
+    line_search_test.cpp
+    lookahead_test.cpp
+    lrsdp_test.cpp
+    momentum_sgd_test.cpp
+    nesterov_momentum_sgd_test.cpp
+    nsga2_test.cpp
+    parallel_sgd_test.cpp
+    proximal_test.cpp
+    pso_test.cpp
+    quasi_hyperbolic_momentum_sgd_test.cpp
+    rmsprop_test.cpp
+    sa_test.cpp
+    sarah_test.cpp
+    scd_test.cpp
+    sdp_primal_dual_test.cpp
+    sgdr_test.cpp
+    sgd_test.cpp
+    smorms3_test.cpp
+    snapshot_ensembles.cpp
+    spalera_sgd_test.cpp
+    spsa_test.cpp
+    svrg_test.cpp
+    swats_test.cpp
+    wn_grad_test.cpp
     indicators_test.cpp
 )