[BUG] Results broken for RGB

[MorganGrundy]

Describe the bug Results on CPU are broken when using detail 100% and mode RGB Euclidean. Most cells are just empty/black. Edge cells seem normal though.

To Reproduce Steps to reproduce the behavior:

1. Load or create a Image Library
2. Load a main image
3. Disable CUDA
4. Generate Photomosaic
5. Look at result

Expected behavior All cells should be filled.

Context (Environment):

• Mosaic Magnifique Version 3.2.3
• OS: Windows 8.1, 64-bit
• Using packaged binary for Mosaic Magnifique v3.1.1

[MorganGrundy]

Fixed: 46f6cf64efd718211987d4a8210a12f1431447e2