First pass idLib conversion from hex rays4.

source/shared/idlib/sys/win32/win_fibers.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <Windows.h>
+
+class idSysFiber {
+public:
+    explicit idSysFiber(const char* name);
+    virtual ~idSysFiber();
+
+    idSysFiber(const idSysFiber&) = delete;
+    idSysFiber& operator=(const idSysFiber&) = delete;
+
+    bool Execute();
+    virtual void Run() = 0;
+
+protected:
+    void YieldFiber();
+
+private:
+    static void WINAPI FiberRoutine(void* data);
+
+    char* name;
+    bool alive;
+    void* fiber;
+    void* parent;
+};
+
+static_assert(sizeof(idSysFiber) == 20, "Recovered idSysFiber ABI changed");