added detune field for BaseSound class
added detune field for BaseSound class

spayton/phaser,TukekeSoft/phaser,TukekeSoft/phaser,rblopes/phaser,englercj/phaser,mahill/phaser,spayton/phaser,BeanSeed/phaser,pixelpicosean/phaser,mahill/phaser,BeanSeed/phaser,TukekeSoft/phaser,photonstorm/phaser,photonstorm/phaser