tracker-writeback: Add taglib based module

The taglib based module allows doing writeback to a wide variety of audio
formats. Currently, the modules writebacks the following rdf properties:
- nie:title
- nmm:artist (fetching nmm:artistName)
- nmm:musicAlbum (fetching dc:title)
- rdfs:comment
- nmm:genre
- nmm:trackerNumber.

The supported file formats are MP3, MPC, FLAC, MP4, ASF, AIFF, WAV, TrueAudio,
WavPack, Ogg FLAC, Ogg Vorbis and Speex.