Farbtastic library added

Not a plugin, but a system level 'tool', so added in the root of
ICEcoder
Color picker icon
Color picker icon added as new tool

Loading the Farbtastic lib too
Plugins container shifted, new tools contained
New functions to show color picker & insert value

CSS color preview now clickable to show color picker, passing color
value
showColorPicker function shows Farbtastic picker and if we have a color
passed as a param, it sets that
Also new function added to insert color which actually replaces token
value at current cursor position