feat(ios): support font scaling for custom fonts

[vijaysingh-axway]

https://jira.appcelerator.org/browse/TIMOB-25847

[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.
📖	❌ 2 tests have failed There are 2 tests failing and 244 skipped out of 2451 total tests.

Tests:

Classname	Name	Time	Error
android.emulator.Titanium.App	pause/resume events (9)	9.009	Error: timeout of 5000ms exceeded at Titanium.<anonymous> (/ti-mocha.js:6535:53120)
android.emulator.Titanium.Network.HTTPClient	clearCookieUnaffectedCheck (9)	60.005	Error: timeout of 60000ms exceeded at Titanium.<anonymous> (/ti-mocha.js:6535:53723)

Generated by 🚫 dangerJS against 7f4c96d

[janvennemann]

This reads like a bug fix release note so i don't think it should be part of the documentation.

[vijaysingh-axway]

We have to tell developer that this behavior is available to use for iOS 11+. So I think there should be something in doc to tell this otherwise how developer will know. That's why I put in Notes.

[janvennemann]

Yes, i agree that we have to make this changes public somewhere. And for that i think the release notes are a better place. So users now right away, ok that was fixed in 9.0.0.

A note in the docs saying that the property works as expected with the current SDK seems unnecessary. There should have been a note in the docs for previous SDK versions saying that the property does not work as expected, which we would have removed now.

[janvennemann]

After reading this in context again i'm fine with the message how it is. IMHO still not ideal though, but that's an issue of our docs not being versioned.

[ssekhri]

FR Passed.
Verified on:
Mac OS: 10.15.1
SDK: 9.0.0.v20191216133819
Appc CLI: 7.1.2
JDK: 11.0.4
Node: 10.16.3
Studio: 6.0.0.201911251516
Xcode: 11.2
Device: iPhone Xr(v13.2.2)