Added filetable!!!!

Also did more Makefile changes

src/filetable.asm

@@ -0,0 +1,19 @@
+[bits 16]
+
+;;
+;; Filetable layout
+;; 0-9 : Filename
+;; 10-12 : Filetype
+;; 13 : RESERVED
+;; 14 : Starting sector
+;; 15 : File Length (in sectors)
+;;
+
+filetable:
+    db "boot",0,0,0,0,0,0, "bin",0,0,1
+    db "filetable",0,      "tab",0,1,1
+    db "kernel",0,0,0,0,   "bin",0,2,20
+    db "test",0,0,0,0,0,0, "txt",0,22,1
+
+times 512-($-$$) db 0
+