Generate interface from class extending other generated interfaces

[micHar]

Consider this structure:

@ToNativeInterface
interface Interface1 {
    suspend fun one() : Float
}

@ToNativeInterface
interface Interface2 {
    suspend fun two() : Float
}

@ToNativeClass
@ToNativeInterface
class MultiClass : Interface1, Interface2 {
    override suspend fun one() = TODO()
    override suspend fun two() = TODO()
    suspend fun three() : Float = TODO()
}

Right now this will fail, because the generated MultiClassNativeProtocol will not depend on generated Interface1NativeProtocol and Interface2NativeProtocol.

To fix this we need to generate interfaces in order of inheritance (and to do that we need to resolve the topological order of the inheritance DAG) and then modify interface generation to take superinterfaces into account as well.

[micHar]

Closed via #44