Add readline library replacement for MSVC

src/msvc/readline/readline.h

@@ -0,0 +1,24 @@
+//
+// readline.h
+// Copyright (C) 2022 Marius Greuel
+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (rl_vcpfunc_t)(char* line);
+
+extern int rl_readline_version;
+
+int rl_input_available(void);
+void rl_callback_read_char(void);
+void rl_callback_handler_install(char* prompt, rl_vcpfunc_t* handler);
+void rl_callback_handler_remove(void);
+
+#ifdef __cplusplus
+}
+#endif