Added demo: pop_calc

Author: hasherezade

demos/pop_calc.cpp

@@ -0,0 +1,15 @@
+#include <Windows.h>
+#include "peb_lookup.h"
+
+int main()
+{
+    LPVOID base = get_module_by_name((const LPWSTR)L"kernel32.dll");
+    if (!base) {
+        return 1;
+    }
+    auto _WinExec = reinterpret_cast<decltype(&WinExec)>(get_func_by_name((HMODULE)base, (LPSTR)"WinExec"));
+    if (!_WinExec) return 4;
+
+    _WinExec("calc.exe", SW_SHOWNORMAL);
+    return 0;
+}