* system/MsgDialog: types & basic text display
* system/MsgDialog: User message dialog
* system/MsgDialog: RAII for MsgDialog ui
* system/MsgDialog: Progress bar dialog
* system/MsgDialog: System message texts
* system/MsgDialog: copy all ui state to local memory
handles when game release memory before close
extracted all UI code to it's own file
use single window instead of creating new one every single dialogOpen
* system/MsgDialog: debug logging
