Thunder sounds (TR6 modification) by Joey Quint

Description
I was tired of the old thunder sounds we had in TRLE. To me they weren't realistic. So I searched for
new sounds, and I found some good ones in the TR6 sound files. But I couldn't use them without making any
modification.
I selected the one which sounded the best, and made some modification so it works on TRLE without making
any modification to the Sound.txt.
I added a LQ preview in the ZIP file if you wanna hear how it sounds before you add them. ;)