New option: Show more stats in inventory view.

This feature can be turned on/off with showMoreStatsInInventoryView in options.cfg.
Default is OFF!
Showing: Weight, Firing Accuracy, Reaction, P.Skill, P.Strength
Just as in UFO Extender. :)
I've had to make new language-strings: STR_WEIGHT, STR_FACCURACY, STR_REACT, STR_PSKILL, STR_PSTRENGTH
I've adapted all of these strings to ALL language files, although it's precision is determined by Google Translate. :)
So i recommend every translator to check those strings after this is merged. (And count the strings' length to fit in the available space!!)