不允许选择gif图时不出现gif的标识；优化选原图时照片大小的显示

TZImagePickerController/TZImagePickerController/TZAssetCell.m

@@ -99,7 +99,7 @@
         self.videoImgView.hidden = NO;
         _timeLength.tz_left = self.videoImgView.tz_right;
         _timeLength.textAlignment = NSTextAlignmentRight;
-    } else if (type == TZAssetCellTypePhotoGif) {
+    } else if (type == TZAssetCellTypePhotoGif && self.allowPickingGif) {
         self.bottomView.hidden = NO;
         self.timeLength.text = @"GIF";
         self.videoImgView.hidden = YES;

TZImagePickerController/TZImagePickerController/TZImageManager.m

@@ -404,7 +404,9 @@ static dispatch_once_t onceToken;
     for (NSInteger i = 0; i < photos.count; i++) {
         TZAssetModel *model = photos[i];
         if ([model.asset isKindOfClass:[PHAsset class]]) {
-            [[PHImageManager defaultManager] requestImageDataForAsset:model.asset options:nil resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) {
+            PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init];
+            options.resizeMode = PHImageRequestOptionsResizeModeFast;
+            [[PHImageManager defaultManager] requestImageDataForAsset:model.asset options:options resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) {
                 if (model.type != TZAssetModelMediaTypeVideo) dataLength += imageData.length;
                 assetCount ++;
                 if (assetCount >= photos.count) {

TZImagePickerController/TZImagePickerController/TZPhotoPreviewController.m

@@ -422,6 +422,7 @@
         [photoPreviewCell setImageProgressUpdateBlock:^(double progress) {
             weakSelf.progress = progress;
             if (progress >= 1) {
+                if (weakSelf.isSelectOriginalPhoto) [weakSelf showPhotoBytes];
                 if (weakSelf.alertView && [weakCollectionView.visibleCells containsObject:weakCell]) {
                     [weakTzImagePickerVc hideAlertView:weakSelf.alertView];
                     weakSelf.alertView = nil;