meta: move photon/libc to root

libc/stdio/fgetc.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <__fio.h>
+
+int fgetc(FILE *fp)
+{
+    char ch = 0;
+    unsigned int r = __fio_read(fp, &ch, 1);
+    if (r == 0 || __fio_error(fp) || __fio_eof(fp)) {
+        return EOF;
+    }
+
+    return ch;
+}