Add external borderless helper

Signed-off-by: Sean Du <do4suki@gmail.com>

CMakeLists.txt

@@ -21,6 +21,10 @@ add_library(version SHARED
     deps/minhook/src/hde/hde64.c
 )
 
+add_executable(cgss-borderless-helper WIN32
+    src/helper_main.cpp
+)
+
 target_include_directories(version PRIVATE
     src
     deps/minhook/include
@@ -29,6 +33,10 @@ target_include_directories(version PRIVATE
     deps/rapidjson/include
 )
 
+target_include_directories(cgss-borderless-helper PRIVATE
+    src
+)
+
 target_compile_definitions(version PRIVATE
     NOMINMAX
     WIN32_LEAN_AND_MEAN
@@ -39,18 +47,36 @@ target_link_libraries(version PRIVATE
     kernel32
 )
 
+target_link_libraries(cgss-borderless-helper PRIVATE
+    user32
+    kernel32
+    shell32
+)
+
 set_target_properties(version PROPERTIES
     OUTPUT_NAME "version"
     PREFIX ""
 )
 
+set_target_properties(cgss-borderless-helper PROPERTIES
+    OUTPUT_NAME "cgss-borderless-helper"
+)
+
 if(MINGW)
     target_compile_options(version PRIVATE
         "$<$<COMPILE_LANGUAGE:CXX>:-fno-exceptions>"
         "$<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>"
     )
+    target_compile_options(cgss-borderless-helper PRIVATE
+        -fno-exceptions
+        -fno-rtti
+    )
     target_link_options(version PRIVATE
         "-static-libgcc"
         "-static-libstdc++"
     )
+    target_link_options(cgss-borderless-helper PRIVATE
+        "-static-libgcc"
+        "-static-libstdc++"
+    )
 endif()