v0.5.6 - FlxMenu custom page positioning

[john32b]

• MPages now have extra positioning properties
• VList scrolling indicators are now clickable
• MPageData, added par() function to quickly set Page Parameters
• MPageData, added stl() function to quickly set Style Overrides
• BUGFIX: MPage background would not appear if style vt_ times were 0

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MPage custom positioning

You can now set some positioning properties to a MPageData object in the PAR field

• Relative Positioning: Alter the x,y coordinates of a page in relation to the root FlxMenu position

• Absolute Positioning: Set fixed x,y coordinates of a page

• Screen Align: Align the menu to the edges or center of the screen
  Checkout <MPageData.hx> for info in comments

• ALSO, You can now set PageParameters quicker with the MPageData.par(..) method. So you can chain a menu creation and setting parameter in one chain.
  e.g.

m.createPage("main").add("
    -|New Game | link   | l_game
    -|Exit     | link   | l_exit")
.par({ pos:"abs", x:25, y:32, slots:4} );
// Fix this specific page at coords (25,32)

m.createPage("menu").add("
  ...
  ... ")
.par({ pos:'screen,c,c' });
// Align this page to screen center (c=center) 
// <screen,X axis,Y Axis> More info in code