fix(ios): animating view width/height from zero

[jquick-axway]

JIRA:
https://jira.appcelerator.org/browse/TIMOB-27236

Summary:

• On iOS, animating a view's width/height doesn't work if current width or height is zero. The animation "complete" event will never fire either.
• Not an issue on Android.

Test:

1. Build and run AnimationSizeTest.js attached to TIMOB-27236.
2. Notice the window is white.
3. Tap on the "Expand/Collapse" button.
4. Verify an orange view expands from top/left corner and fills the window. (This is the fix.)
5. Tap on the "Expand/Collapse" button again.
6. Verify the orange view collapses to the top/left corner and disappears.

[build]

	Fails
🚫	Tests have failed, see below for more information.

	Messages
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.
📖	❌ 3 tests have failed There are 3 tests failing and 961 skipped out of 15378 total tests.
📖	💾 Here's the generated SDK zipfile.

Tests:

Classname	Name	Time	Error
android.emulator.Titanium.UI.ListView	.refreshControl (in NavigationWindow) (5.0.2)	10.452	Error: Timeout of 5000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
android.emulator.Titanium.UI.View	.backgroundImage (URL-redirect) (5.0.2)	10.382	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
ios.macos.Titanium.UI.View	animate width/height from zero (10.15.5)	10.082	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)

Generated by 🚫 dangerJS against 3776249

[janvennemann]

LGTM!

[janvennemann]

This is just me being super nitpicky, but the brackets are not really required here.

[lokeshchdhry]

FR Passed.