chore(android): update for sdk 9.0.0, gradle, and AndroidX

[jquick-axway]

Summary:

• Updated to use gradle to acquire library dependencies.
• Updated to use hyperloop module 5.0.0.
• Migrated to AndroidX.
• Removed usage of get/set property methods.

Note: We can no longer support accessing Google Support library classes in Titanium 9.0.0. This is because you cannot use AndroidX and the Support libraries at the same time. This will cause class name collision resulting in a build failure. All hyperloop users will need to migrate.

[jquick-axway]

@sgtcoolguy , @janvennemann , should we delete the Windows platform side from this sample project too?

[jquick-axway]

The touch sample was broken before 9.0.0. It's an issue with the touch coordinates (ie: dp vs. pixels).

There are other little issues too, such as theming. We're showing dark dialogs with black text buttons. And the bottom tab bar icon selection doesn't work. (sigh)