restore some game functionallity

* i'm gradually restoring game functionality with the new modules design, though still a lot to do
* you can reload all scripts and modules using Ctrl+R shortcut while playing (finally! this is the reason of all this rework)
* a bunch of fixes, but new regression too :P
* fix performance issue that could lead freezes in the client in older machines
* completely new game module with new design
* fix crashs in map render
* remove uigame.cpp (now every game input is via lua)
* enable DEBUG macro by default, with it you are able to view any possible lua leak while running

modules/core_styles/styles/messageboxes.otui

@@ -0,0 +1,19 @@
+MessageBoxWindow < MainWindow
+  id: messageBoxWindow
+  anchors.centerIn: parent
+  height: 60
+  width: 80
+  padding-bottom: 10
+  padding-right: 10
+
+MessageBoxLabel < Label
+  id: messageBoxLabel
+  anchors.horizontalCenter: parent.horizontalCenter
+  anchors.top: parent.top
+
+MessageBoxRightButton < Button
+  id: messageBoxRightButton
+  anchors.bottom: parent.bottom
+  anchors.right: parent.right
+  width: 64
+  visible: true