feat(android): add defaultCalendar to Ti.Calendar

[m1ga]

Fixes #13218

Adds Ti.Calendar.defaultCalendar parity

example

if (!Ti.Calendar.hasCalendarPermissions()) {
	Ti.Calendar.requestCalendarPermissions(function(e) {
		if (e.success) {
			console.log(Ti.Calendar.defaultCalendar);
		}
	});
} else {
	console.log(Ti.Calendar.defaultCalendar);
}

make sure to add this to tiapp.xml

<uses-permission android:name="android.permission.READ_CALENDAR"/>
<uses-permission android:name="android.permission.WRITE_CALENDAR"/>

[build]

	Fails
🚫	Test reports missing for MacOS. This indicates that a build failed or the test app crashed
🚫	🔬 There are library changes, but no changes to the unit tests. That's OK as long as you're refactoring existing code, but will require an admin to merge this PR. Please see README.md#unit-tests for docs on unit testing.

	Warnings
⚠️	There is no linked JIRA ticket in the PR body. Please include the URL of the relevant JIRA ticket. If you need to, you may file a ticket on JIRA

	Messages
📖	✊ 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 16367 tests are passing. (There are 900 skipped tests not included in that total)
📖	🎉 Another contribution from our awesome community member, m1ga! Thanks again for helping us make Titanium SDK better. 👍

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