feat: setup structure for block devices

added ide block device
added mbr block device driver
started fat block device driver

reordered boot
start timer before pci/ide/etc.
enable interrupts earlier

fixed exception from ide controller

cleanup code
more printfs

kernel/libc/libc.c

@@ -5,9 +5,10 @@
  *      Author: rick
  */
 
+#include <types.h>
 #include "libc.h"
 
-int memcpy(char *dst, char *src, int amount) {
+int memcpy(u8 *dst, const u8 *src, int amount) {
     for (int i = 0; i < amount; i++) {
         dst[i] = src[i];
     }