feat(android): add callback support to Ti.Platform.openURL()

[jquick-axway]

JIRA:
https://jira.appcelerator.org/browse/TIMOB-27862

Note:
The following mocha suite PR will unit test this via app custom URL scheme.
https://github.com/appcelerator/titanium-mobile-mocha-suite/pull/250

Test:

1. Build and run the below code on Android.
2. Tap on the "OpenURL(url)" button.
3. Verify it launches a web browser showing Google's website.
4. Verify the log shows the below:
   @@@ openURL() returned: true
5. Navigate back to the Titanium app.
6. Tap on the "OpenURL(url, callback)" button.
7. Verify it launches a web browser showing Google's website.
8. Verify the log shows the below. Event must be logged last with success set to true:
   @@@ openURL() returned: true
@@@ openURL() event: {"code":0,"success":true}
9. Navigate back to the Titanium app.
10. Tap on the "OpenURL(url, options, callback)" button.
11. Verify it launches a web browser showing Google's website.
12. Verify the log shows the below. Event must be logged last with success set to true:
    @@@ openURL() returned: true
@@@ openURL() event: {"code":0,"success":true}
13. Navigate back to the Titanium app.
14. Tap on the "OpenURL(bad-url)" button.
15. Verify that nothing launches. (This is good. It has a bad URL.)
16. Verify the log shows the below. Returned value must be false.
    @@@ openURL() returned: false
17. Tap on the "OpenURL(bad-url)" button.
18. Verify that nothing launches. (This is good. It has a bad URL.)
19. Verify the log shows the below. Event must be logged last and success set to false:
    [INFO] @@@ openURL() returned: false
[INFO] @@@ openURL() event: {"code":1,"success":false}

var url = "https://www.google.com";
var badUrl = "idontexist://";

var window = Ti.UI.createWindow({
	layout: "vertical",
});
var open1Button = Ti.UI.createButton({
	title: "openURL(url)",
	top: Ti.App.iOS ? "40dp" : "20dp",
});
open1Button.addEventListener("click", function() {
	var result = Ti.Platform.openURL(url);
	Ti.API.info("@@@ openURL() returned: " + result);
});
window.add(open1Button);
var open2Button = Ti.UI.createButton({
	title: "openURL(url, callback)",
	top: "20dp",
});
open2Button.addEventListener("click", function() {
	var result = Ti.Platform.openURL(url, function(e) {
		Ti.API.info("@@@ openURL() event: " + JSON.stringify(e));
	});
	Ti.API.info("@@@ openURL() returned: " + result);
});
window.add(open2Button);
var open3Button = Ti.UI.createButton({
	title: "openURL(url, options, callback)",
	top: "20dp",
});
open3Button.addEventListener("click", function() {
	var openOptions = {
		UIApplicationOpenURLOptionsOpenInPlaceKey: true,
	};
	var result = Ti.Platform.openURL(url, openOptions, function(e) {
		Ti.API.info("@@@ openURL() event: " + JSON.stringify(e));
	});
	Ti.API.info("@@@ openURL() returned: " + result);
});
window.add(open3Button);
var open4Button = Ti.UI.createButton({
	title: "openURL(bad-url)",
	top: "20dp",
});
open4Button.addEventListener("click", function() {
	var result = Ti.Platform.openURL(badUrl);
	Ti.API.info("@@@ openURL() returned: " + result);
});
window.add(open4Button);
var open5Button = Ti.UI.createButton({
	title: "openURL(bad-url, callback)",
	top: "20dp",
});
open5Button.addEventListener("click", function() {
	var result = Ti.Platform.openURL(badUrl, function(e) {
		Ti.API.info("@@@ openURL() event: " + JSON.stringify(e));
	});
	Ti.API.info("@@@ openURL() returned: " + result);
});
window.add(open5Button);
window.open();

[build]

	Messages
📖	💾 Here's the generated SDK zipfile.
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.
📖	✅ All tests are passing Nice one! All 6567 tests are passing. (There are 709 skipped tests not included in that total)

Generated by 🚫 dangerJS against 16f2b5b

[garymathews]

CR: PASS

[ssekhri]

FR Passed.

Verified on:
Mac OS: 10.15.4
SDK: 9.1.0.v20200325104908
Appc CLI: 8.0.0
JDK: 11.0.4
Node: 10.16.3
Studio: 9.1.0.v20200430104404
Device: Nexus4(v5.1.1) device, Pixel3(v10.0) emulator