message: Introduce OATPP_LINK_TEST_LIBRARY
diff: @@ -17,6 +17,7 @@ project(oatpp VERSION ${OATPP_THIS_MODULE_VERSION} LANGUAGES CXX)
  option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
  option(OATPP_INSTALL "Create installation target for oat++" ON)
  option(OATPP_BUILD_TESTS "Create test target for oat++" ON)
  +option(OATPP_LINK_TEST_LIBRARY "Link oat++ test library" ON)
  option(OATPP_LINK_ATOMIC "Link atomic library for other platform than MSVC|MINGW|APPLE|FreeBSD" ON)
  option(OATPP_MSVC_LINK_STATIC_RUNTIME "MSVC: Link with static runtime (/MT and /MTd)." OFF)
  @@ -24,7 +25,7 @@ option(OATPP_MSVC_LINK_STATIC_RUNTIME "MSVC: Link with static runtime (/MT and /
  ## COMPILATION CONFIG #############################################################################
  ###################################################################################################
  -if(OATPP_BUILD_TESTS)
  +if(OATPP_LINK_TEST_LIBRARY)
  set(OATPP_THIS_MODULE_LIBRARIES oatpp oatpp-test) ## list of libraries to find when find_package is called
  set(OATPP_THIS_MODULE_TARGETS oatpp oatpp-test) ## list of targets to install
  set(OATPP_THIS_MODULE_DIRECTORIES oatpp oatpp-test) ## list of directories to install
  