Added SimpleOverride as submodule and updated other modules

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "External/Embed2C"]
 	path = External/Embed2C
 	url = https://github.com/Neko-Box-Coder/Embed2C.git
+[submodule "External/SimpleOverride"]
+	path = External/SimpleOverride
+	url = https://github.com/Neko-Box-Coder/SimpleOverride.git

CMakeLists.txt

@@ -1,6 +1,10 @@
 cmake_minimum_required(VERSION 3.14)
 # cmake_minimum_required(VERSION 3.24)
 
+if(TARGET ssGUI)
+    return()
+endif()
+
 set (CMAKE_CXX_STANDARD 11)
 
 # For Clang to do parsing
@@ -164,6 +168,16 @@ set(ssTEST_BUILD_CHECK OFF)
 add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/External/ssTest" "${CMAKE_CURRENT_BINARY_DIR}/ssTest")
 set_target_properties(ssTest PROPERTIES FOLDER External)  # Set folder name for IDEs such as Visual Studio
 
+
+# ==========================================================
+# SimpleOverride
+# ==========================================================
+
+if(NOT ssGUI_MOCK_BACKEND_MODE STREQUAL "${ssGUI_MOCK_OFF_OPTION_STRING}")
+    add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/External/SimpleOverride" "${CMAKE_CURRENT_BINARY_DIR}/SimpleOverride")
+    set_target_properties(SimpleOverride PROPERTIES FOLDER External)  # Set folder name for IDEs such as Visual Studio
+endif()
+
 if(NOT ssGUI_MOCK_BACKEND_MODE STREQUAL "${ssGUI_MOCK_OPTION_STRING}")
     # ==========================================================
     # clip 
@@ -376,6 +390,7 @@ if(NOT ssGUI_MOCK_BACKEND_MODE STREQUAL "${ssGUI_MOCK_OPTION_STRING}")
 endif()
 
 if(NOT ssGUI_MOCK_BACKEND_MODE STREQUAL "${ssGUI_MOCK_OFF_OPTION_STRING}")
+    target_link_libraries(ssGUI PUBLIC SimpleOverride)
     target_compile_definitions(ssGUI PUBLIC SSGUI_MOCK_BACKEND)
 endif()