update to libgroove 5.0.0

work being done in libgroove-master branch.
- [ ] Don't scan albums (See #194)
- [ ] Additionally compute audio checksum (maybe as simple as crc32). This will be used when updating tags to ensure that audio data was not corrupted.
- [x] Additionally compute song waveform. I saw a picture of @moonwave99's [player](https://github.com/moonwave99/playa) and it looks great. This will also be beneficial if we decide to add ability to ignore sections of tracks (such as long sections of silence in the beginning, middle, or end)
- [ ] solve https://github.com/andrewrk/node-groove/issues/22 and handle the error case
- [ ] streaming is broken in libgroove-master branch
- [ ] solve https://github.com/andrewrk/libgroove/issues/109 and make sure it works
- [ ] set soundio application name and stream name
- [ ] support changing hardware playback device
- [ ] get waveform data to the client efficiently (don't send it with library index? binary format?)
- [ ] after scanning, might need to start over scanning again to get the waveform if duration was wrong
- [ ] release libgroove 5.0.0
- [ ] publish new version of node-groove compatible with libgroove 5.0.0