libtracker-common: Move and fix tracker-parser unit tests from libtracker-fts
Revert "Always guarantee metadata, remove --enable-guarantee-metadata option"

This reverts commit 898ac3ca17afa5d9fb382656e7e4ba4ff4b6ef39.

Conflicts:
	tests/libtracker-extract/tracker-guarantee-test.c

https://bugzilla.gnome.org/show_bug.cgi?id=733536
libtracker-extract: Fix unit tests and return value for guarantee API

- Return FALSE when we don't add to the TrackerSparqlBuilder, TRUE otherwise
- Skip any unit tests when --enable-guarantee-metadata is not configured
Release 1.3.1