add FreeFrame plugin; fix version info in resource; add Mac OSX version of FreeFrame plugin

• Inspired by color organs popular in the 1970s
• Easy to use, with straightforward parameters
• Full screen mode (F11)
• Print and print preview
• Pause and reverse for capturing snapshots
• Smooth tweening due to fast frame rate and 48-bit color
• Various patterns including diagonal, sawtooth and diamond
• Also available as a Freeframe GL plugin for both Windows and Mac hosts