Cleanup: move trip-related functions into own translation unit

These functions were spread out over dive.c and divelist.c.
Move them into their own file to make all this a bit less monolithic.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

qt-models/cylindermodel.cpp

@@ -7,6 +7,7 @@
 #include "qt-models/diveplannermodel.h"
 #include "core/gettextfromc.h"
 #include "core/subsurface-qt/DiveListNotifier.h"
+#include "core/trip.h" // TODO: Needed because cylindersReset uses a trip parameter -> remove that!
 
 CylindersModel::CylindersModel(QObject *parent) :
 	CleanerTableModel(parent),

qt-models/divelistmodel.cpp

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "qt-models/divelistmodel.h"
 #include "core/qthelper.h"
+#include "core/trip.h"
 #include "core/settings/qPrefGeneral.h"
 #include <QDateTime>
 

qt-models/divetripmodel.cpp

@@ -3,7 +3,7 @@
 #include "qt-models/filtermodels.h"
 #include "core/gettextfromc.h"
 #include "core/metrics.h"
-#include "core/divelist.h"
+#include "core/trip.h"
 #include "core/qthelper.h"
 #include "core/subsurface-string.h"
 #include "core/tag.h"

qt-models/filtermodels.cpp

@@ -4,6 +4,7 @@
 #include "core/display.h"
 #include "core/qthelper.h"
 #include "core/divesite.h"
+#include "core/trip.h"
 #include "core/subsurface-string.h"
 #include "core/subsurface-qt/DiveListNotifier.h"
 #include "qt-models/divetripmodel.h"

qt-models/weightmodel.cpp

@@ -6,6 +6,7 @@
 #include "core/qthelper.h"
 #include "core/subsurface-qt/DiveListNotifier.h"
 #include "qt-models/weightsysteminfomodel.h"
+#include "core/trip.h" // TODO: Needed because weightsystemsReset uses a trip parameter -> remove that!
 
 WeightModel::WeightModel(QObject *parent) : CleanerTableModel(parent),
 	changed(false),