Add main source file and placeholder hooks.

Signed-off-by: aixxe <me@aixxe.net>

src/Hooks/FrameStageNotify.cpp

@@ -0,0 +1,11 @@
+#include "Hooks.h"
+
+typedef void (*FrameStageNotify_t) (IBaseClientDLL*, ClientFrameStage_t);
+
+void Hooks::FrameStageNotify(IBaseClientDLL* thisptr, ClientFrameStage_t stage) {
+	// Get the original function and store it statically.
+	static FrameStageNotify_t oFrameStageNotify = clientdll_hook->GetOriginalFunction<FrameStageNotify_t>(35);
+
+	// Call original 'IBaseClientDLL::FrameStageNotify'.
+	oFrameStageNotify(thisptr, stage);
+}