attaching schema nodes progress

source/core/CMakeLists.txt

@@ -17,12 +17,15 @@ add_library(matador-core STATIC
   ../../include/matador/object/attribute_definition.hpp
   ../../include/matador/object/basic_object_info.hpp
   ../../include/matador/object/error_code.hpp
+  ../../include/matador/object/foreign_node_completer.hpp
+  ../../include/matador/object/internal/shadow_schema.hpp
   ../../include/matador/object/many_to_many_relation.hpp
   ../../include/matador/object/object_definition.hpp
   ../../include/matador/object/object_info.hpp
   ../../include/matador/object/object_proxy.hpp
   ../../include/matador/object/object_ptr.hpp
   ../../include/matador/object/primary_key_resolver.hpp
+  ../../include/matador/object/relation_completer.hpp
   ../../include/matador/object/relation_endpoint.hpp
   ../../include/matador/object/schema.hpp
   ../../include/matador/object/schema_node.hpp
@@ -53,6 +56,7 @@ add_library(matador-core STATIC
   ../../include/matador/utils/macro_map.hpp
   ../../include/matador/utils/os.hpp
   ../../include/matador/utils/placeholder.hpp
+  ../../include/matador/utils/primary_key_attribute.hpp
   ../../include/matador/utils/result.hpp
   ../../include/matador/utils/singleton.hpp
   ../../include/matador/utils/string.hpp
@@ -72,6 +76,8 @@ add_library(matador-core STATIC
   object/attribute_definition.cpp
   object/basic_object_info.cpp
   object/error_code.cpp
+  object/foreign_node_completer.cpp
+  object/internal/shadow_schema.cpp
   object/object_definition.cpp
   object/primary_key_resolver.cpp
   object/relation_endpoint.cpp
@@ -88,6 +94,7 @@ add_library(matador-core STATIC
   utils/leader_follower_thread_pool.cpp
   utils/library.cpp
   utils/os.cpp
+  utils/primary_key_attribute.cpp
   utils/string.cpp
   utils/thread_pool.cpp
   utils/types.cpp