Context
color_t option type has recently been added in libf3d, however parsing is actually the same as for double_vector.
Lets implement proper parsing of colors, such as RGB and other syntax.

Suggested solution

• Implement proper parsing in options_tools::parse for this type
• Check that formating is correct in options_tools::format and improve it if needed
  -Add testing in TestSDKOptions.cxx and TestSDKOptionsIO.cxx

Syntax to Support

• HDR double vector: val, val, val
• RGB hexa: #RRGGBB (case independent)
• named colors: https://vtk.org/doc/nightly/html/classvtkNamedColors.html#a66191aacb2a0e4eafd13bbdd3decb5b3
• hsl(): https://www.w3schools.com/colors/colors_hsl.asp
• rgb(): https://www.w3schools.com/colors/colors_rgb.asp
• hwb(): https://www.w3schools.com/colors/colors_hwb.asp (optional)
• cmyk(): https://www.w3schools.com/colors/colors_cmyk.asp (optional)