compatibility issue with area musics from bg1 mods when full music compoent is installed

[TotoR115]

When Full music is chosen, it messes with bg1 mods. See: http://www.shsforums.net/topic/61743-bgt-music-full-with-modded-game/

this update will fix music from followings mods if the component 'Full Baldur's Gate/Shadows of Amn/Throne of Bhaal Music' is installed after them :

• Northern Tales of the Sword Coast
• Dark Side of the Sword Coast
• The Secret of Bonehill
• Balduran's Seatower
• Baldur's Gate Romantic Encounters

This fix is needed as long as mods are not updated to check for ref of music in songlist.2da