Replace mission planning UI.

Mission planning has been completely redone. Missions are now planned
by right clicking the target area and choosing "New package".

A package can include multiple flights for the same objective. Right
now the automatic flight planner is only fragging single-flight
packages in the same manner that it used to, but that can be improved
now.

The air tasking order (ATO) is now the left bar of the main UI. This
shows every fragged package, and the flights in the selected package.
The info bar that was previously on the left is now a smaller bar at
the bottom of the screen. The old "Mission Planning" button is now
just the "Take Off" button.

The flight plan display no longer shows enemy flight plans. That could
be re-added if needed, probably with a difficulty/cheat option.

Aircraft inventories have been disassociated from the Planner class.
Aircraft inventories are now stored globally in the Game object.

Save games made prior to this update will not be compatible do to the
changes in how aircraft inventories and planned flights are stored.

qt_ui/windows/QLiberationWindow.py

@@ -1,22 +1,36 @@
 import logging
 import sys
 import webbrowser
+from typing import Optional
 
 from PySide2.QtCore import Qt
 from PySide2.QtGui import QIcon
-from PySide2.QtWidgets import QWidget, QVBoxLayout, QMainWindow, QAction, QMessageBox, QDesktopWidget, \
-    QSplitter, QFileDialog
+from PySide2.QtWidgets import (
+    QAction,
+    QDesktopWidget,
+    QFileDialog,
+    QMainWindow,
+    QMessageBox,
+    QSplitter,
+    QVBoxLayout,
+    QWidget,
+)
 
 import qt_ui.uiconstants as CONST
 from game import Game
+from game.inventory import GlobalAircraftInventory
+from qt_ui.dialogs import Dialog
+from qt_ui.models import GameModel
 from qt_ui.uiconstants import URLS
 from qt_ui.widgets.QTopPanel import QTopPanel
+from qt_ui.widgets.ato import QAirTaskingOrderPanel
 from qt_ui.widgets.map.QLiberationMap import QLiberationMap
-from qt_ui.windows.GameUpdateSignal import GameUpdateSignal, DebriefingSignal
+from qt_ui.windows.GameUpdateSignal import DebriefingSignal, GameUpdateSignal
 from qt_ui.windows.QDebriefingWindow import QDebriefingWindow
-from qt_ui.windows.newgame.QNewGameWizard import NewGameWizard
 from qt_ui.windows.infos.QInfoPanel import QInfoPanel
-from qt_ui.windows.preferences.QLiberationPreferencesWindow import QLiberationPreferencesWindow
+from qt_ui.windows.newgame.QNewGameWizard import NewGameWizard
+from qt_ui.windows.preferences.QLiberationPreferencesWindow import \
+    QLiberationPreferencesWindow
 from userdata import persistency
 
 
@@ -25,6 +39,10 @@ class QLiberationWindow(QMainWindow):
     def __init__(self):
         super(QLiberationWindow, self).__init__()
 
+        self.game: Optional[Game] = None
+        self.game_model = GameModel()
+        Dialog.set_game(self.game_model)
+        self.ato_panel = None
         self.info_panel = None
         self.setGame(persistency.restore_game())
 
@@ -44,16 +62,19 @@ class QLiberationWindow(QMainWindow):
         self.setGeometry(0, 0, screen.width(), screen.height())
         self.setWindowState(Qt.WindowMaximized)
 
-
     def initUi(self):
-
-        self.liberation_map = QLiberationMap(self.game)
+        self.ato_panel = QAirTaskingOrderPanel(self.game_model)
+        self.liberation_map = QLiberationMap(self.game_model)
         self.info_panel = QInfoPanel(self.game)
 
         hbox = QSplitter(Qt.Horizontal)
-        hbox.addWidget(self.info_panel)
-        hbox.addWidget(self.liberation_map)
-        hbox.setSizes([2, 8])
+        vbox = QSplitter(Qt.Vertical)
+        hbox.addWidget(self.ato_panel)
+        hbox.addWidget(vbox)
+        vbox.addWidget(self.liberation_map)
+        vbox.addWidget(self.info_panel)
+        hbox.setSizes([100, 600])
+        vbox.setSizes([600, 100])
 
         vbox = QVBoxLayout()
         vbox.setMargin(0)
@@ -210,10 +231,11 @@ class QLiberationWindow(QMainWindow):
     def exit(self):
         sys.exit(0)
 
-    def setGame(self, game: Game):
+    def setGame(self, game: Optional[Game]):
         self.game = game
         if self.info_panel:
             self.info_panel.setGame(game)
+        self.game_model.set(self.game)
 
     def showAboutDialog(self):
         text = "<h3>DCS Liberation " + CONST.VERSION_STRING + "</h3>" + \