Updating RPC tests in Postman (#1340)

Makefile

README.md

cmd/rpcdaemon/README.md

cmd/rpcdaemon/cli/config.go

cmd/rpcdaemon/commands/eth_api.go

cmd/rpcdaemon/commands/eth_call.go

cmd/rpcdaemon/commands/eth_deprecated.go

cmd/rpcdaemon/commands/eth_filters.go

cmd/rpcdaemon/commands/send_transaction.go

cmd/rpcdaemon/commands/trace_adhoc.go

cmd/rpcdaemon/commands/trace_api.go

cmd/rpcdaemon/commands/web3_api.go

cmd/rpcdaemon/main.go

cmd/rpcdaemon/postman/RPC_Testing.json