Refactor logger init() function.

[MindScriptAct]

Break, horible init into many dedicated functions. init(stage:Stage, x:int = 0, y:int = 0, width:int = 900, height:int = 400, alpha:Number = 0.9, autoShow:Boolean = false, initTab:String = "LOG", openKeyCode:int = 192, isCtrlKeyNeeded:Boolean = true, isShiftKeyNeeded:Boolean = false, isAltKeyNeeded:Boolean = false)