fix(android)(8_0_X): Ti.App wrongly fires pause/resume events when opening/closing child windows

[jquick-axway]

JIRA: https://jira.appcelerator.org/browse/TIMOB-26746

Cherry-pick of: #10634

[build]

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

	Messages
📖	💾 Here's the generated SDK zipfile.
📖	❌ 4 tests have failed There are 4 tests failing and 450 skipped out of 3017 total tests.

Tests:

Classname	Name	Time	Error
android.emulator.os	#freemem() returns a positive Number	0.002	expected 0 to be above 0
android.emulator.Titanium.Android	activity callbacks	20.862	timeout of 5000ms exceeded
android.emulator.Titanium.UI.Layout	layoutWithSIZE_and_fixed	9.888	timeout of 5000ms exceeded
android.emulator.Titanium.UI.Layout	undefinedRight	18.888	timeout of 5000ms exceeded

Generated by 🚫 dangerJS against b245166

[ssekhri]

FR Passed.
The 'resumed' event is fired on app launch, and 'resume', 'resumed' events are fired on app foreground. They do not get fired when a window is opened.
The 'pause' and 'paused' events are fired on app background only. They do not get fired on window close.
Test Env:
Mac OS 10.14.3
Ti SDK: 8.0.0.v20190315171321
Appc CLI: 7.0.10
Node: 8.12.0
JDK: 9.0.4
Studio: 5.1.2.201903111843
Android Device: Pixel(v9.0), Nexus6 Emulator(v6.0)