Add devoptab support to replace the libioushax devoptab

source/devoptab/devoptab_fsa_fchmod.cpp

@@ -0,0 +1,11 @@
+#include "devoptab_fsa.h"
+#include "logger.h"
+#include <mutex>
+
+int __fsa_fchmod(struct _reent *r,
+                 void *fd,
+                 mode_t mode) {
+    // FSChangeMode on open files is not possible on Cafe OS
+    r->_errno = ENOSYS;
+    return -1;
+}