switch to `solana-tpu-client` from `solana_client::tpu_client` for `bench-tps`, `dos/`, `LocalCluster`, `gossip/` #1026

Job	Run time
cargo-test-sbf (token/program)	8m 6s
test	0s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	13m 44s
check	0s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 49s
cargo-test-sbf (token-upgrade/program)	8m 39s
cargo-test-sbf (feature-proposal/program)	8m 1s
cargo-test-sbf (governance/addin-mock/program, governance/program)	11m 55s
cargo-test-sbf (memo/program)	7m 3s
cargo-test-sbf (name-service/program)	7m 10s
cargo-test-sbf (stake-pool/program)	12m 21s
cargo-test-sbf (single-pool/program)	9m 9s
	1h 35m 57s

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