New oscillators
- Added: Simple Sine Oscillator (TT-SINE)
- Added: Simple Sawtooth Oscillator (TT-SAW)
- Added: Simple Square Oscillator (TT-SQR)
- Added: Simple Triangle Oscillator (TT-TRI)
- Added: Sine+ Oscillator (TT-SINE+)
- Added: Sawtooth+ Oscillator (TT-SAW+)
- Added: Square+ Oscillator (TT-SQR+)
- Added: Triangle+ Oscillator (TT-TRI+)
- Fixed: Small issues in plugin.json (#1 #2 )