Improved color aberration auto-correction

No loss of color saturation
Smooth sub-pixel color shifts without block discontinuities
Significantly more accurate measure to estimate color shifts
The fitting was improved
The analyzis is performed only once per pipe instance
Restored OpenMP support
Improved border reconstruction
Clean code
Lens: pre-exposure, mozaicaized-enabled, auto-setup
Atrous fine tuning
Zoom: Improved and fixed teh brokeh math