libtracker-extract: Ensure utf8ness in TrackerResource helpers
In the same vein than commit 98136e11, we can't rely on data from EXIF/IPTC metadata being UTF-8. Prepare the helpers to handle this.
Closes: #21 (closed)
In the same vein than commit 98136e11, we can't rely on data from EXIF/IPTC metadata being UTF-8. Prepare the helpers to handle this.
Closes: #21 (closed)