prefer higher-quality YUYV video over YUV420/YU12
replace unused RGB channel merge with HSV channel merge
add small CV testing utility
add make rule for test utility
remove old BigTouch code
Merge branch 'colorspace' into touchd-rework
split huge Filter.cc into one file per class
compile filters from separate source files
fix line endings
cleanup: remove unneeded member var
remove unneeded #ifdefs
enable shared memory for Short/RGBImage constructors
cleanup: restructure RGB/grey image handling (compiles, untested)
use more descriptive filter types
fix filter name display
add missing virtual getImage function
proper source-type-dependent handling of images in Camera class
only filter images that actually exist :-)
fix null pointer access in FlipFilter
fix 8-/16-bit image handling in BlobList