feat(android): menu items for CollapseToolbar

[m1ga]

based on #14093 by @Max87ZA but with some changes:

• using click event instead of callback funtion
• parameter of addMenuItem is an object instead of fixed parameters, so it's more inline with Ti.Android.Menu.add() (https://titaniumsdk.com/api/titanium/android/menu.html#methods_add). Paremters are: itemId, showAsAction and title

Example:

const win = Ti.UI.createWindow({theme: "Theme.Titanium.DayNight.NoTitleBar"});
const centerView = Ti.UI.createView({layout: "vertical", height: Ti.UI.SIZE});

for (let i = 0; i < 40; ++i) {
	let lbl = Ti.UI.createLabel({text: "test " + i, height: 40});
	centerView.add(lbl);
}

const collapsingToolbar = Ti.UI.Android.createCollapseToolbar({contentScrimColor: "#333", top: 0, title: "Collapsing toolbar", contentView: centerView});


win.addEventListener('open', function() {
	collapsingToolbar.onHomeIconItemSelected = function() {
		alert("click click");
	};
	collapsingToolbar.displayHomeAsUp = true;

// NEW: -------------------------------------- add menu items --------------------------------------
	collapsingToolbar.addEventListener("click", function(e) {
		alert(e.itemId + " clicked");
	});
	collapsingToolbar.addMenuItem({
		title: "Menu item",
    showAsAction: Ti.Android.SHOW_AS_ACTION_NEVER // or Ti.Android.SHOW_AS_ACTION_ALWAYS
	});
});

win.add(collapsingToolbar);
win.open();