libevent seems to have invaded `libbitcoin_common` via `url.cpp`

`url.cpp` is used only from `test/fuzz/string.cpp` and `wallet/rpcwallet.cpp`

libevent should only be required for bitcoind, bitcoin-cli and (due only to the hack of passing wallet names) bitcoin-qt

"\"generate\"              Coinbase transactions received with more than 100 confirmations.\n"
                                "\"immature\"              Coinbase transactions received with 100 or fewer confirmations.\n"
                                "\"orphan\"                Orphaned coinbase transactions received."},
                            {RPCResult::Type::STR_AMOUNT, "amount", "The amount in " + CURRENCY_UNIT + ". This is negative for the 'send' category, and is positive\n"
                                "for all other categories"},
                            {RPCResult::Type::STR, "label", "A comment for the address/transaction, if any"},
                            {RPCResult::Type::NUM, "vout", "the vout value"},
                            {RPCResult::Type::STR_AMOUNT, "fee", "The amount of the fee in " + CURRENCY_UNIT + ". This is negative and only available for the\n"
                                 "'send' category of transactions."},
                        },
                        TransactionDescriptionString()),
                        {
                            {RPCResult::Type::BOOL, "abandoned", "'true' if the transaction has been abandoned (inputs are respendable). Only available for the \n"
                                 "'send' category of transactions."},
                        })},
                    }
                },
                RPCExamples{
            "\nList the most recent 10 transactions in the systems\n"
            + HelpExampleCli("listtransactions", "") +
            "\nList transactions 100 to 120\n"
            + HelpExampleCli("listtransactions", "\"*\" 20 100") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("listtransactions", "\"*\", 20, 100")
                },
            }.Check(request);
    
    
    pwallet->BlockUntilSyncedToCurrentChain();
    const std::string* filter_label = nullptr;