Added love.window.setPosition(x, y [, displayindex]), love.window.getPosition, and optional x and y fields for t.window in love.conf and for the flags table in love.window.set/getMode (resolves issue #930.)

src/modules/window/Window.h

@@ -60,6 +60,8 @@ public:
 		SETTING_HIGHDPI,
 		SETTING_SRGB,
 		SETTING_REFRESHRATE,
+		SETTING_X,
+		SETTING_Y,
 		SETTING_MAX_ENUM
 	};
 
@@ -122,6 +124,9 @@ public:
 
 	virtual void getDesktopDimensions(int displayindex, int &width, int &height) const = 0;
 
+	virtual void setPosition(int x, int y, int displayindex) = 0;
+	virtual void getPosition(int &x, int &y, int &displayindex) = 0;
+
 	virtual bool isCreated() const = 0;
 
 	virtual void setWindowTitle(const std::string &title) = 0;
@@ -205,6 +210,9 @@ struct WindowSettings
 	bool highdpi; // false
 	bool sRGB; // false
 	double refreshrate; // 0.0
+	bool useposition; // false
+	int x; // 0
+	int y; // 0
 
 }; // WindowSettings