Auto Focus by Touch View
fix autofocus and take photo
起動元Activity作成, カメラUI作成
AutoFocus状態表示 + 一定時間解除
ズーム機能 with Pinch In & Out
倍率textviewの周りにcircle表示
Merge pull request #1 from tbonFukitama/develop

実装 : Basic Function of Camera