* New mozart input events.

* Adding TODO for keyrepeat

This applies commit 88441bfc0f712ad451784851bfcf0b0cc418ad75 from the
skia_rev_130a118cc68f8f9973e9572356011de378463fea branch to master so
master works in the Fuchsia build again.

Previously we had passed a local generator to flow::BitmapImageCreate /
SkImage::MakeFromGenerator, which takes ownership of the generator.
That generator in turn referenced an SkData backed by a local vector.
The result was an SkImage backed by a deleted buffer.

Merged iOS and Android font fallback mechanisms and push font discovery logic into skia

I'm not sure that this is the right way to do this, but this change causes the Observatory to come up correctly in the content handler.

See issue flutter/flutter#8115

Picks up changes to include inlined frames and line numbers in AOT stack traces.

Fixes https://github.com/flutter/flutter/issues/7579

In a previous change I re-included the observatory assets in the Fuchsia build, but didn't notice this bit here.

After this, if Settings::enable_observatory can be set to true somehow, the Observatory will come up in Flutter apps on Fuchsia. Unfortunately, I'm not sure how to do that.

* Document the need to sync the engine repo to avoid #8005

* Flit gclient sync and git pull

See https://github.com/flutter/flutter/issues/6807

Ensure that the text input keyboard is reloaded if the view keyboardType
changes.

Fixes https://github.com/flutter/flutter/issues/7724

Added:
* UIRequiredDeviceCapabilities=[arm64]
* MinimumOSVersion=8.0

Fixes https://github.com/flutter/flutter/issues/7723

Provide a default status bar tap handler for FlutterAppDelegate.
By default, taps are passed to the key window's rootViewController if
it's a FlutterViewController. Apps with custom app delegates can
customize this behaviour to send the tap to the FlutterViewController(s)
they prefer by overriding touchesBegan:withEvent.