Added createBufferSource to reuse buffer source creation logic
Added createBufferSource to reuse buffer source creation logic

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