+ Solved bug when sending float samples to oggenc2 encoder. (OggVorbisEncoder.cs)
+ Added new experimental features related with headers for multichannel audio data: (Encoder.cs, MainForm.cs, Job.cs)
ChannelMask: CMask in 2
Tweak. When checked the header is WAVEFORMAT
Selecting 0 the default for the current NumChannels is applied.
HeaderType: Head. in 2
Tweak. 0 for WAV, 1 for W64, 2 for RF64, 3 for W64 if >4GB, 4 for RF64 if >4GB
Use only for Wav Writer or encoders with support for these headers.