Release 4.3.0

[elihart]

4.3.0 (Dec 1, 2020)

• ModelGroupHolder get recycle pool from parent (ModelGroupHolder to get the pool from parent - another solution #1097)
• Add support for EpoxyModelGroup in the EpoxyVisibilityTracker (Support for visibility tracking in model groups #1091)
• Convert EpoxyVisibilityTracker code to Kotlin (Convert EpoxyVisibilityTracker code to Kotlin #1090)

Breaking Changes

Note that due to the conversion of EpoxyVisibilityTracker to kotlin you now need to access EpoxyVisibilityTracker.partialImpressionThresholdPercentage as a property
epoxyVisibilityTracker.setPartialImpressionThresholdPercentage(value) -> epoxyVisibilityTracker.partialImpressionThresholdPercentage = value`

Also, the ModelGroupHolder improvement required the ModelGroupHolder#createNewHolder function to change its signature to accept a ViewParent parameter.

If you override createNewHolder() anywhere you will need to change it to createNewHolder(@NonNull ViewParent parent)