Bard Songs

Added script for Refresh II.
Added scripts for Hunters Prelude and Archers Prelude.
The calculations were followed off Sword Madrigal and Blade Madrigal respectively.
Source for ranged accuracy caps:
http://wiki.bluegartr.com/bg/Hunter%27s_Prelude
http://wiki.bluegartr.com/bg/Archer%27s_Prelude

Sentinel's Scherzo calculation was incorrect.
Source: http://wiki.bluegartr.com/bg/Sentinel%27s_Scherzo

Changed Hunters Prelude and Archers Prelude AOE to 5 for use with Pianissimo.
Added animations for Sentinel's Scherzo and Refresh II.