Display properly RGB images having Planar Configuration = 1

Some changes to consider the byte ordering in RGB images with any Planar Configuration value. Screenshot attached.

You should add the necessary code to read and store the value of that Dicom Element (0028, 0006).

![RGB_PlanarConfiguration_1](https://f.cloud.github.com/assets/929672/452852/773bcc22-b2fe-11e2-8585-648bfba95995.png)