[Versioning] Better and smarter for update and sept

- Still compatible with old hekate.
- Allows for hotfix control
- Sept is now copied from actual running payload, negating the need to check update.bin
- If a foreign payload is found in sept then it is renamed and hekate copies itself. After sept run, it renames it back and continues with boot.

bootloader/link.ld

@@ -6,6 +6,7 @@ SECTIONS {
 	.text : {
 		*(.text._start);
 		*(._boot_cfg);
+		*(._ipl_version);
 		*(.text*);
 	}
 	.data : {