Extension API: description of structures used for describing extension object; jerry_extend_with - stub for extension interface routine.

jerry-core/CMakeLists.txt

@@ -96,6 +96,7 @@ project (JerryCore CXX C ASM)
 
 # Sources
  # Jerry core
+  file(GLOB SOURCE_CORE_API                *.cpp)
   file(GLOB SOURCE_CORE_MEM                mem/*.cpp)
   file(GLOB SOURCE_CORE_VM                 vm/*.cpp)
   file(GLOB SOURCE_CORE_ECMA_BUILTINS      ecma/builtin-objects/*.cpp)
@@ -107,6 +108,7 @@ project (JerryCore CXX C ASM)
 
   set(SOURCE_CORE
       jerry.cpp
+      ${SOURCE_CORE_API}
       ${SOURCE_CORE_MEM}
       ${SOURCE_CORE_VM}
       ${SOURCE_CORE_ECMA_BUILTINS}