Support Places SDK for Android (New)

[wangela]

As of Places SDK for Android v3.3.0, there are now two SDK versions: the existing Places SDK for Android and Places SDK for Android (New). New features from v3.3.0 will only be available on Places SDK for Android (New).

In v3.3.0, the New SDK only supports Java, so this ktx library will need to be updated when the New SDK supports Kotlin.

This guide for choosing which SDK version to use explains the differences and what's available through the New SDK. SDK version selection is done at client initialization.

For as long as both SDK versions support Kotlin, this ktx library should also support both.

Note that this also introduces a minimum Kotlin BOM dependency of 1.8.0.