avcodec: make sure color_range is properly initialized
avprobe: print color properties for show_streams
doc: expand description for some color properties
pixfmt: mark further reserved values
pixdesc: return color properties names
dump: split audio and video probing on multiple lines

Also always report pixel format.
dump: print detailed color space information
dump: print the original coded dimensions when available
dump: Update streams and chapters printout format

This matches the -map option which requires '%d:%d' format.
avcodec: fix descriptions on color transfer options

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
avcodec: add enum values on chroma sample location
avcodec: fix colorspace option description
mov: support the Color Parameter Atoms 'colr'
vp8: initialize color space and range properties
vp9: initialize color space and range properties
vc1: initialize color properties