No level 30 for mounts

[Araraura]

Describe the bug
A mount can't reach level 30 because there's no EXP requirement for it after level 29. Attempting to give a mount EXP when it's at level 29 (when it has above 4550) will throw an array out of bounds exception.

To Reproduce
Steps to reproduce the behavior:

1. Get a mount and some revitalizes
2. When the mount's tiredness increases, use the revitalizes to give it EXP
3. Repeat until level 29 (I recommend speeding up the mount tiredness schedule to not wait forever)

Expected behavior
The mount should be able to keep leveling up to 30.
I think a 30th element needs to be added to the mount array in ExpTable.java similar to the pet variable for that to happen.