meta: move photon/libc to root

libc/stdio/printf.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include "__printf.h"
+
+int printf(const char *restrict format, ...)
+{
+    va_list args;
+    va_start(args, format);
+    int len = vprintf(format, args);
+    va_end(args);
+    return len;
+}