Explicitly dispose sample buffer as suggested to fix #73
Explicitly dispose sample buffer as suggested to fix #73

benyao1201/Xamarin,nied/ZXing.Net.Mobile,syphe/ZXing.Net.Mobile,r2d2rigo/ZXing.Net.Mobile,Redth/ZXing.Net.Mobile,sephirothwzc/ZXing.Net.Mobile