Split utilities functions into separate files

src/musicbrainz/acoustidclient.cpp

@@ -43,8 +43,8 @@
 #include "acoustidclient.h"
 #include "core/networkaccessmanager.h"
 #include "core/networktimeouts.h"
-#include "core/timeconstants.h"
 #include "core/logging.h"
+#include "utilities/timeconstants.h"
 
 const char *AcoustidClient::kClientId = "0qjUoxbowg";
 const char *AcoustidClient::kUrl = "https://api.acoustid.org/v2/lookup";

src/musicbrainz/musicbrainzclient.cpp

@@ -46,7 +46,7 @@
 #include "core/logging.h"
 #include "core/networkaccessmanager.h"
 #include "core/networktimeouts.h"
-#include "core/utilities.h"
+#include "utilities/xmlutils.h"
 #include "musicbrainzclient.h"
 
 const char *MusicBrainzClient::kTrackUrl = "https://musicbrainz.org/ws/2/recording/";

src/musicbrainz/tagfetcher.cpp

@@ -29,7 +29,7 @@
 #include <QFutureWatcher>
 #include <QString>
 
-#include "core/timeconstants.h"
+#include "utilities/timeconstants.h"
 #include "engine/chromaprinter.h"
 #include "acoustidclient.h"
 #include "musicbrainzclient.h"