DetectorColor: Renamed `updateLimit` to `updateLimits`
DetectorColor: Removed obsolete declarations
program_options: loadConfigFile: Catch "unrecognised option" exception
Delegated crop functionality in dedicated class CropFilter
At the cost of some incompatibilities, namely:
* no longer loads crop parameters from configuration file
* returns unshifted position (relative to crop roi)
Delegated "morphological opening" filter to a dedicated class.
Advantage: exposes a parameter trackbar
OpenFilter: Changed trackbar name to "Open size" from "Size"
To prepare area for close filter.
OpenFilter: Minor whitespace reformatting
Introduced dedicated CloseFilter
Added dedicated HsvFilter class
Supports loading parameters from configuration file!
HsvFilter.h: Added info comment
DetectorColor::detect: Added info comment