color dialog: Color Picker and Hex Value editbox added.

Thanks to Fred van Stappen for the original contribution. I (Graeme)
make a couple more changes, code clean-up, and dialog translation.
UIDesigner project file for MSEide updated.

The project file now uses the IDE's global macros. The idea is that you
have those macros setup on each platform you work on. So when you open
the project, the paths would automatically be correct.

This simplifies the project settings a bit.
Updated translation constants for all language files with lastest updates.