Merge pull request #19244 from karalabe/freezer-2

cmd/geth/chaincmd.go

cmd/geth/main.go

cmd/geth/usage.go

cmd/utils/cmd.go

cmd/utils/flags.go

common/size.go

consensus/clique/clique.go

consensus/clique/snapshot.go

consensus/ethash/sealer.go

console/prompter.go

core/blockchain.go

core/blockchain_test.go

core/genesis.go

core/headerchain.go

core/rawdb/accessors_chain.go

core/rawdb/accessors_indexes.go

core/rawdb/accessors_metadata.go

core/rawdb/database.go

core/rawdb/freezer.go

core/rawdb/freezer_table.go