add face feature extraction pipeline

tests/CMakeLists.txt

@@ -0,0 +1,13 @@
+add_executable(face_pipeline_tests
+    face_pipeline_tests.cpp
+)
+
+target_link_libraries(face_pipeline_tests PRIVATE
+    face_pipeline
+)
+
+target_compile_definitions(face_pipeline_tests PRIVATE
+    SOURCE_ROOT="${CMAKE_SOURCE_DIR}"
+)
+
+add_test(NAME face_pipeline_tests COMMAND face_pipeline_tests)