Add transform argument for Web3RpcRequest

[y9san9]

Web3RpcRequest(
    method = "eth_sendRawTransaction",
    params = listOf(signedTransaction),
    paramsSerializer = String.serializer(),
    resultSerializer = String.serializer(),
    transform = ::TransactionHash
)

@Alex009, what do you think about such a thing?

It's useful for cases when we want to wrap request result in typed stuff like on screenshot below:

Now that works fine and I can add a request to the separate entity, but when I try to use it with a batch request, it becomes kinda verbose because I have a String output, but not a TokenCryptoCurrency? one.

[Alex009]

@y9san9 yes, good idea.

or can be better - do serializer for TokenCryptoCurrency and just pass into resultSerializer = TokenCryptoCurrency.serializer()

[y9san9]

For example, the network cannot be extracted from the string and I will make custom serializer like TokenCryptoCurrencySerializer(network)