balrogg: lossless Vorbis/Opus recompressor

[kj911]

Very good work!

In the case of the OGG container format, 5 different encoding profiles were tested (see sample files, description), where in the case of small >30s sample files, it processed the files flawlessly, while on a ~2 hour test file (different source material), it only partially succeeded, with various error messages or endless encoding loops. The memory usage was always between ~200,000KB and ~270,000KB, slowly increasing, over and over again, without writing an output file. Compared to OGGRE, it consumes 2-3-4* more memory, but often with better results. It also brought more than 10% size reduction on the tested OPUS file.