feat: added dllmain

src/impl/dllmain.cpp

@@ -0,0 +1,25 @@
+#include <windows.h>
+#include <detail/fxn.hpp>
+
+DWORD WINAPI ThreadProc(LPVOID lpParameter)
+{
+    auto& fxnManager = fxn::FxnManager::GetInstance();
+
+    fxnManager.Initialize();
+}
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ulReason, LPVOID lpReserved)
+{
+    if (ulReason == DLL_PROCESS_ATTACH)
+    {
+        DisableThreadLibraryCalls(hModule);
+        HANDLE hThread = CreateThread(NULL, NULL, ThreadProc, hModule, NULL, NULL);
+
+        if (hThread)
+        {
+            CloseHandle(hThread);
+        }
+    }
+
+    return TRUE;
+}