fat_io_lib finally works, implement virtual partition devices, manage devices via string keys

libterminal/terminal.h

@@ -1,8 +1,8 @@
 #ifndef _LIBTERMINAL_TERMINAL_TERMINAL_H
 #define _LIBTERMINAL_TERMINAL_TERMINAL_H
 
+#include <devices.h>
 #include <stddef.h>
-#include <terminal_device.h>
 
 /* Print a string onto a graphical terminal. Prints len chars */
 void terminal_print (const char* string, size_t len);