Port the changes in the platform API for the mirror node state cache implementation

[bilyana-gospodinova]

Problem

There are currently some classes that were copied from the platform API temporarily for the state cache implementation - ReadableKVStateBase and WritableKVStateBase. This works currently but is hard to maintain.

Solution

An upstream PR was created and merged - hiero-ledger/hiero-consensus-node#18012 so when it becomes a part of a release we need to remove the copied classes and use Guava's ForwardingMap and pass it in the newly added parent constructor. This way we will delegate our ScopedValue data structures from the current approach to the ForwardingMap's methods and achieve the same results but make the code more maintainable.

Alternatives

No response