Updating memory arena by hand because Gemini did something weird.

Added some os functions for memory handling.
Starting conversion to memory arena

JulietApp/main.cpp

@@ -9,6 +9,7 @@
 #include <Core/JulietInit.h>
 #include <Core/Logging/LogManager.h>
 #include <Core/Logging/LogTypes.h>
+#include <Core/Main.h>
 #include <Core/Math/Matrix.h>
 #include <Core/Memory/MemoryArena.h>
 #include <Core/Memory/Utils.h>
@@ -23,7 +24,6 @@
 #include <Juliet.h>
 
 #ifdef JULIET_ENABLE_IMGUI
-#include <Graphics/ImGuiRenderer.h>
 #include <imgui.h>
 #endif
 
@@ -454,19 +454,8 @@ JulietApplication& GetEditorApplication()
     return EditorApplication;
 }
 
-int main(int /*argc*/, char** /*argv*/)
+int JulietMain(int, wchar_t**)
 {
-    // Allow only one instance to be launched.
-    // Need to create Mutex code in the lib because i dont want to include windows.h in this file anymore
-    // CreateMutex(0, false, L"Local\\Juliet.App");
-    // if (GetLastError() == ERROR_ALREADY_EXISTS)
-    // {
-    //     MessageBox(nullptr, L"An instance of Juliet is already running.", L"Juliet", MB_OK | MB_ICONEXCLAMATION);
-    //     return EXIT_FAILURE;
-    // }
-
-    setvbuf(stdout, nullptr, _IONBF, 0);
-
     if (__argc > 1)
     {
         for (int i = 1; i < __argc; ++i)