Add CMake test project

test/cmake_test_project/CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.5)
+  
+add_subdirectory(../.. ${CMAKE_CURRENT_BINARY_DIR}/boost_config)
+  
+add_executable(boost_config_cmake_test main.cpp)  
+target_link_libraries(boost_config_cmake_test Boost::config)  

test/cmake_test_project/main.cpp

@@ -0,0 +1,5 @@
+#include <boost/config.hpp>
+
+int main()
+{
+}