Add binary compatibility validation in KGP for Kotlin 2.2.0

[sarahhaggarty]

This PR adds information about how to use binary compatibility validation in the KGP for Kotlin 2.2.0.

[3flex]

Are there any migration tips for those moving from https://github.com/Kotlin/binary-compatibility-validator?

Is this a drop-in replacement if moving from BCV 0.17.0 to KGP 2.2.0? Does this new feature use the same output format and location?

[shanshin]

Are there any migration tips for those moving from https://github.com/Kotlin/binary-compatibility-validator?

Since Gradle DSL for BCV in KGP is experimental in the first approximation, we do not give instructions so that existing production projects do not migrate to it. DSL will be changed in the next version.

Is this a drop-in replacement if moving from BCV 0.17.0 to KGP 2.2.0?

There is no need to replace it now, the experimental DSL is suitable for pet projects to try out the approach and collect initial feedback.
BCV 0.17.0 still works and it can be used along with KGP 2.2.0.

Does this new feature use the same output format and location?

The format and location match, we are trying to implement a smooth migration from a separate plug-in to the KGP, but so far not all the original features have been migrated.

[daniCsorbaJB]

Looks great! 💯 I left just a couple of minor comments. Please let me know what you think

[daniCsorbaJB]

Looks great! 🚀 Thank you for the changes!