sinusoid update

One of the last updates of 2012. sinusoid gets some nice new features:

• New improved audio engine boost.
• Adding new wave shapes (sinusoid, square, triangle, pulse {12.5%,25%,50%,75%}).
• Adding nes like pseudo random noise, as drum option.
• Adding sample divider to bitchrusher.
• Allowing up to 16 bit wave shapes.