This commit replaces the previous command-line argument parsing with
program-options-lite, which additionally serves as a simple config-file
parser.

A table based configuration of options provides in a single place
option naming, help text, and default values.

Side effects of this change are to:

 - adds further error checking for unknown arguments (warning only), parse
   failures, required options.

 - replace the default constructor of Parameters,
   PCCAttributeEncodeParamaters, and PCCAttributeEncodeParamaters
   with defaults in args handler

 - updates the type of Parameters::mode & ...::colorTransform to be more
   more descriptive.



git-svn-id: http://wg11.sc29.org/svn/repos/MPEG-I/Part5-PointCloudCompression/TM/TMC3/trunk@1318 94298a81-5874-47c9-aab8-bfb24faeed7f