Add IsLoadBalancedRPC flag #481

Job	Run time
detect-modules	3s
golangci-lint (tools/evm-chain-bindings/examples/basic)	20s
golangci-lint (metrics)	44s
golangci-lint (chains)	44s
golangci-lint (tools/evm-chain-bindings)	1m 20s
golangci-lint (capabilities)	56s
golangci-lint (multinode)	52s
golangci-lint-result	3s
	5m 2s

Provide feedback