Split utilities functions into separate files

src/subsonic/subsonicbaserequest.cpp

@@ -39,7 +39,7 @@
 #include <QJsonObject>
 #include <QJsonValue>
 
-#include "core/utilities.h"
+#include "utilities/randutils.h"
 #include "subsonicservice.h"
 #include "subsonicbaserequest.h"
 

src/subsonic/subsonicrequest.cpp

@@ -41,9 +41,9 @@
 #include "core/application.h"
 #include "core/logging.h"
 #include "core/song.h"
-#include "core/timeconstants.h"
-#include "core/imageutils.h"
 #include "core/networktimeouts.h"
+#include "utilities/imageutils.h"
+#include "utilities/timeconstants.h"
 #include "subsonicservice.h"
 #include "subsonicurlhandler.h"
 #include "subsonicbaserequest.h"

src/subsonic/subsonicservice.cpp

@@ -42,7 +42,7 @@
 #include <QSettings>
 #include <QSortFilterProxyModel>
 
-#include "core/utilities.h"
+#include "utilities/randutils.h"
 #include "core/application.h"
 #include "core/player.h"
 #include "core/logging.h"