["Request"] Add Binary compatibility check in CI for core, fx and optics

[danimontoya]

We are developing a Kotlin library so in order to continuously check binary compatibility between versions then plan is to use the same tooling that JetBrains uses for validating it for the kotlin-stdlib.
The tool is the following:
https://github.com/Kotlin/binary-compatibility-validator
100% compatibility will not always be necessary — for example, for internal classes, but the tool will prevent us to avoid major breaking changes or binary incompatibilities.
TODO:

• Setup core, fx and optics projects (there is some work done already).
• Check what can be ignore to avoid false positives.
• Add check on CI to make the build to fail in case of validation goes wrong.