move files to subdir and add generated files
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c32a4aa..3f19143 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1090,10 +1090,11 @@
   src/cpp/common/version_cc.cc
   src/cpp/server/async_generic_service.cc
   src/cpp/server/create_default_thread_pool.cc
-  src/cpp/server/default_health_check_service.cc
   src/cpp/server/dynamic_thread_pool.cc
-  src/cpp/server/health_check_service.cc
-  src/cpp/server/health_check_service_server_builder_option.cc
+  src/cpp/server/health/default_health_check_service.cc
+  src/cpp/server/health/health.pb.c
+  src/cpp/server/health/health_check_service.cc
+  src/cpp/server/health/health_check_service_server_builder_option.cc
   src/cpp/server/server_builder.cc
   src/cpp/server/server_cc.cc
   src/cpp/server/server_context.cc
@@ -1253,10 +1254,11 @@
   src/cpp/common/version_cc.cc
   src/cpp/server/async_generic_service.cc
   src/cpp/server/create_default_thread_pool.cc
-  src/cpp/server/default_health_check_service.cc
   src/cpp/server/dynamic_thread_pool.cc
-  src/cpp/server/health_check_service.cc
-  src/cpp/server/health_check_service_server_builder_option.cc
+  src/cpp/server/health/default_health_check_service.cc
+  src/cpp/server/health/health.pb.c
+  src/cpp/server/health/health_check_service.cc
+  src/cpp/server/health/health_check_service_server_builder_option.cc
   src/cpp/server/server_builder.cc
   src/cpp/server/server_cc.cc
   src/cpp/server/server_context.cc
@@ -1639,10 +1641,11 @@
   src/cpp/common/version_cc.cc
   src/cpp/server/async_generic_service.cc
   src/cpp/server/create_default_thread_pool.cc
-  src/cpp/server/default_health_check_service.cc
   src/cpp/server/dynamic_thread_pool.cc
-  src/cpp/server/health_check_service.cc
-  src/cpp/server/health_check_service_server_builder_option.cc
+  src/cpp/server/health/default_health_check_service.cc
+  src/cpp/server/health/health.pb.c
+  src/cpp/server/health/health_check_service.cc
+  src/cpp/server/health/health_check_service_server_builder_option.cc
   src/cpp/server/server_builder.cc
   src/cpp/server/server_cc.cc
   src/cpp/server/server_context.cc