feat: Independent "Ryujin Core as a library" for better usability

- Ryujin now includes a component called Core, where the main obfuscator logic resides. It functions as an independent library that can be used anywhere.
- RyujinConsole now operates by loading the RyujinCore library to run the obfuscator.
- This is a preparation step for additional Ryujin components, such as a future Ryujin GUI and more features like passes and advanced obfuscation options.

RyujinCore/dllmain.cc

@@ -0,0 +1,17 @@
+#include <Windows.h>
+
+BOOL APIENTRY DllMain( HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved ) {
+
+    switch (ul_reason_for_call) {
+
+        case DLL_PROCESS_ATTACH:
+        case DLL_THREAD_ATTACH:
+        case DLL_THREAD_DETACH:
+        case DLL_PROCESS_DETACH:
+            break;
+    
+    }
+
+    return TRUE;
+}
+