+ Added AudioBehavior incombat bool switches to CombatSystemBehavior.cs to trigger sounds inside of AudioBehavior

+Revamped AudioBehavior now works with in game music, combat music, and combat sounds.
+Added AudioManager prefab that manages audio for music and sounds from one Script
+Added free and creative common Mp3s to test with. Don't know if they will be pushed to build

Signed-off-by: Adester <Dsternejr@gmail.com>