[TIMOB-10448] iOS: modal window does not have screen size and navBar parity

modal windows are fullscreen, unlike other platform implementations navBarHidden works whether or not the window is modal, unlike other platforms otherwise, modal windows in mobileweb and android are not fullscreen by default, and navBarHidden does not work in mobileweb unless the window is modal, as documented see screenshots, see documentation here are some fix options: 1. don't make modal windows fullscreen 2. make mobileweb and android modal windows fullscreen 3. update the documentation to indicate platform differences for navBarHidden, fullscreen, and modal for example: - navBarHidden boolean works in ios regardless of modal boolean - fullscreen boolean does not appear to work on any platform if the window (modal or not) is in a tab (see sample code below) - fullscreen false does not work in ios modal windows - modal and fullscreen don't seem to have any effect on android if window is in a tab - etc. steps to reproduce: 1. run code:

var getRandomColor = function()
{
	return "#" + Math.random().toString(16).slice(2, 8);
};

function createTabGroupObject() {
	var tabGroupObject = {};

	tabGroupObject.tabGroup = Ti.UI.createTabGroup();

	tabGroupObject.addTabFromString = function(string) {
		var color = getRandomColor();

		var tabWindow = Ti.UI.createWindow({
			backgroundColor : color,
			title : string,
			barColor: color,
			navBarHidden : true, // Ti.UI.Window.navBarHidden
			modal : true, // Ti.UI.Window.modal
			fullscreen : false // Ti.UI.Window.fullscreen
		});

		var tab = Ti.UI.createTab({
			window : tabWindow,
			title : string,
			borderWidth : 1,
			borderColor : 'black',
			backgroundColor : color
		});

		tabGroupObject.tabGroup.addTab(tab);
		tabGroupObject['tab' + string] = tab;
	};

	tabGroupObject.open = function() {
		tabGroupObject.tabGroup.open();
	};

	return tabGroupObject;
}

var tabGroupObject = createTabGroupObject();

tabGroupObject.addTabFromString('Checkout');
tabGroupObject.addTabFromString('Return');

tabGroupObject.open();

actual result: all platforms open a tabgroup with two tabs, each tab window having a different color, except for ios which opens a fullscreen window, see screenshots expected result: all platforms open a tabgroup with two tabs, each tab window having a different color