Shellscript improvement plus FAT driver implementations

- Improved the run bash script to exit when an error occurs in one of the sub tasks
- Wrote basic FAT16 functions that should give enough information to properly implement the rest of the driver
- FAT structure namings are now in accordence with the microsoft spec of March 2005

run.sh

@@ -1,12 +1,25 @@
 #!/bin/bash
+PROC=$$
 
+# Build the Corelib static library
+(cd CoreLib
+if ! make; then
+    echo "Build failed!"
+    kill -10 $PROC
+fi)
 
-cd CoreLib
-make
-cd ../kernel
+# Build the kernel image
+(cd kernel
 make clean
 make
-cd ..
+if ! make; then
+  echo "Build failed!"
+  kill -10 $PROC
+fi)
 
 ./scripts/update_harddrive.sh
+
+
+
 ./scripts/run_qemu.sh
+