v1.6.1: Update rpc (#247)

1. support self destruct tract action
2. add block time stamp field to log
3. change LocalizedTrace fields to value
4. set transaction receipt field EpochNumber to value
5. remove RPC method GetEpochReceiptsByPivotBlockHash

Conflux Go SDK v1.5.11

Upgrade denpendencies

Conflux Go SDK v1.5.10

Support CIP1559, see details from here

Conflux Go SDK v1.5.9

• Support circuit breaker when creating client
• Client support WithContext for attach context on calling rpc

Conflux Go SDK v1.5.7

• Support light POS relay
• Support RPC debug_getEpochReceiptProofByTransaction, pos_getLedgerInfoByEpochAndRound,cfx_getCollateralInfo

Conflux Go SDK v1.5.0

Update field DepositTime of DepositInfo to *hexutil.Big

Conflux Go SDK v1.4.4

• Fix pos rpc GetTransactionByNumber return result

Conflux Go SDK v1.4.3

• Support SubscribeNewHeadsWitReconn, SubscribeEpochsWithReconn, SubscribeLogsWithReconn
• Remove offset & limit from LogFilter
• Always set gasprice to nil when EstimateGasAndCollateral
• Use MiddlewareableProvider in client for convinenet to HookCallContext/HookBatchCallContext
• Remove client.UseCallRpcMiddleware and client.UseBatchCallRpcMiddleware, and use client.HookCallContext and client.HookBatchCallContext to replace them

Conflux Go SDK v1.2.0

• Add context in CallRpcHandlerFunc/BatchCallRpcHandlerFunc for hook context when Call/Batchcall
• AccountManagerOperator support ImportKey and Export interface

Conflux Go SDK v1.0.29

Support unit convert utils
Upgrade go-ethereum dependency version to v1.10.15
Update RPC methods and structs