Capture "musicbrainz_releasetrackid" tag (#1827)

* db/migration: typo fix

* model: add MbzReleaseTrackID field

* scanner: capture the musicbrainz_releasetrackid tag

db/migration/20220724231849_add_musicbrainz_release_track_id.go

@@ -0,0 +1,28 @@
+package migrations
+
+import (
+	"database/sql"
+
+	"github.com/pressly/goose"
+)
+
+func init() {
+	goose.AddMigration(upAddMusicbrainzReleaseTrackId, downAddMusicbrainzReleaseTrackId)
+}
+
+func upAddMusicbrainzReleaseTrackId(tx *sql.Tx) error {
+	_, err := tx.Exec(`
+alter table media_file
+	add mbz_release_track_id varchar(255);
+`)
+	if err != nil {
+		return err
+	}
+	notice(tx, "A full rescan needs to be performed to import more tags")
+	return forceFullRescan(tx)
+}
+
+func downAddMusicbrainzReleaseTrackId(tx *sql.Tx) error {
+	// This code is executed when the migration is rolled back.
+	return nil
+}