Protocol 23 release candidate 1

This is the first release candidate for the Stellar Protocol 23 support. See #112

Horizon updates:

• remove deprecated fields numArchivedContracts and archivedContractsAmount from AssetResponse
• add new field destinationMuxedId to AssetBalanceChange
• remove deprecated field errorResultXdrBase64 from SubmitTransactionAsyncResponse

Soroban rpc:

• add new authMode field to SimulateTransactionRequest
• extend GetTransactionResponse and GetTransactionsResponse to support the new field events (TransactionEvents) holding the diagnostic, transaction and contract events.
• extend GetEventsResponse add latestLedgerCloseTime, oldestLedger and oldestLedgerCloseTime fields.
• remove pagingToken from GetEventsResponse
• extend EventInfo add new fields opIndex and txIndex
• add the new ext field to LedgerEntry from GetLedgerEntriesResponse
• extend testing for parsing the different kinds of events returned in GetTransactionResponse and GetTransactionsResponse

StrKey:

• add support for StrKey claimable balance ids ("B...")
• add support for StrKey liquidity pool ids ("L...")
• accept StrKey claimable balance ids ("B...") in: ClaimClaimableBalanceOperation, ClawbackClaimableBalanceOperation, ClaimableBalancesRequestBuilder, OperationsRequestBuilder, TransactionsRequestBuilder RevokeSponsorshipOperation, XdrSCAddress, XdrLedgerKey, XdrClaimableBalanceID, and TxRep
• accept StrKey liquidity pool ids ("L...") in LiquidityPoolDepositOperation,LiquidityPoolWithdrawOperation, LiquidityPoolsRequestBuilder, OperationsRequestBuilder, TradesRequestBuilder, AccountsRequestBuilder, EffectsRequestBuilder , LiquidityPoolTradesRequestBuilder , TransactionsRequestBuilder, XdrSCAddress, XdrLedgerKey and TxRep
• add a new StrKey test case (StrKeyTest).
• extend amm, claimable_balance and query test cases for the new StrKey claimable balance ids and liquidity pool ids

XDR changes:

• extend XdrSCAddress and XdrSCAddressType to support muxed accounts, claimable balance ids and liquidity pool ids
• extend XdrSCSpecType to support muxed account addresses
• XdrTransactionMeta: add transaction meta v4 support to XdrTransactionMeta, add XdrTransactionMetaV4, XdrOperationMetaV2 and XdrTransactionEvent
• extend XdrContractCostType to support the new cost types
• XdrSCSpecEntry: add support for spec events (XdrSCSpecEventV0). Add XdrSCSpecEventV0, XdrSCSpecEventParamV0, XdrSCSpecEventDataFormat and XdrSCSpecEventParamLocationV0
• XdrSorobanTransactionData: add support for indices representing what Soroban entries in the footprint are archived (add XdrSorobanTransactionDataExt, XdrSorobanResourcesExtV0)
• add restored case to XdrLedgerEntryChange
• XdrConfigSettingContractLedgerCostV0: rename txMaxReadLedgerEntries to txMaxDiskReadEntries, ledgerMaxDiskReadBytesto txMaxDiskReadBytes, feeReadLedgerEntry to feeDiskReadLedgerEntry, feeRead1KB to feeDiskRead1KB, bucketListTargetSizeBytes to sorobanStateTargetSizeBytes, writeFee1KBBucketListLow to rentFee1KBSorobanStateSizeLow, writeFee1KBBucketListHigh to rentFee1KBSorobanStateSizeHigh, bucketListWriteFeeGrowthFactor to sorobanStateRentFeeGrowthFactor
• extend XdrConfigSettingEntry with new cases for contractParallelCompute, contractLedgerCostExt and contractSCPTiming
• rename bucketListSizeWindow case in XdrConfigSettingEntry to liveSorobanStateSizeWindow
• add XdrConfigSettingContractParallelComputeV0, XdrConfigSettingContractLedgerCostExtV0 and XdrConfigSettingSCPTiming
• XdrStateArchivalSettings: rename bucketListSizeWindowSampleSize to liveSorobanStateSizeWindowSampleSize and bucketListWindowSamplePeriod to liveSorobanStateSizeWindowSamplePeriod
• XdrConfigSettingID: add new cases for contractParallelComputeV0, contractLedgerCostExtV0 and scpTiming, rename bucketListSizeWindow case to liveSorobanStateSizeWindow

SEP-11 (TxRep):

• update TxRep to support new address types for muxed accounts, claimable balances and liquidity pools.
• accept new StrKey claimable balance ids ("B...")
• accept new StrKey liquidity pool ids ("L...")
• rename readBytes to diskReadBytes for XdrSorobanResources. TxRep can still read the old version (readBytes) but writes diskReadBytes now.
• rename CONFIG_SETTING_BUCKETLIST_SIZE_WINDOW to CONFIG_SETTING_LIVE_SOROBAN_STATE_SIZE_WINDOW
  for ConfigSettingID. TxRep can still read the old value (CONFIG_SETTING_BUCKETLIST_SIZE_WINDOW) but writes CONFIG_SETTING_LIVE_SOROBAN_STATE_SIZE_WINDOW now.
• add support for CONFIG_SETTING_CONTRACT_PARALLEL_COMPUTE_V0, CONFIG_SETTING_CONTRACT_LEDGER_COST_EXT_V0, CONFIG_SETTING_SCP_TIMING
• add support for XdrSorobanResources extension holding indices representing what Soroban entries in the footprint are archived.

Other improvements:

• extend Address class to support new address types for muxed accounts, claimable balances and liquidity pools.
• SEP-02: Improve federation test
• improve soroban test cases