add opts for maxRetries and retryDelay in rpc client#183

GuillemGarciaDev merged 1 commit intoXRPLF:mainXRPLF/xrpl-go:mainfrom

UndeadDemidov:feat/rpc-retry-optsUndeadDemidov/xrpl-go:feat/rpc-retry-optsCopy head branch name to clipboard