message: mavsdk_server: don't forget core "plugin"
diff: cmake_minimum_required(VERSION 3.10.2)
  -foreach(COMPONENT_NAME ${ENABLED_PLUGINS})
  +set(COMPONENTS_LIST ${ENABLED_PLUGINS})
  +list(APPEND COMPONENTS_LIST core)
  +
  +foreach(COMPONENT_NAME ${COMPONENTS_LIST})
  add_library(${COMPONENT_NAME}_proto_gens STATIC
  ${CMAKE_CURRENT_SOURCE_DIR}/generated/${COMPONENT_NAME}/${COMPONENT_NAME}.grpc.pb.cc
  ${CMAKE_CURRENT_SOURCE_DIR}/generated/${COMPONENT_NAME}/${COMPONENT_NAME}.pb.cc
  @@ -48,7 +51,7 @@ target_link_libraries(mavsdk_server
  )
  -foreach(plugin ${ENABLED_PLUGINS})
  +foreach(plugin ${COMPONENTS_LIST})
  string(TOUPPER ${plugin} plugin_uppercase)
  target_compile_options(mavsdk_server
  PRIVATE
  