begin refac

cmd/cgat/main.go

lib/bouncer/backends/v0/accept.go

lib/bouncer/backends/v0/params.go

lib/bouncer/frontends/v0/accept.go

lib/bouncer/frontends/v0/authenticate.go

lib/bouncer/frontends/v0/options.go

lib/bouncer/frontends/v0/params.go

lib/bouncer/pooler.go

lib/gat/acceptor.go

lib/gat/configs/pgbouncer/config.go

lib/gat/configs/zalando/config.go

lib/gat/dialer.go

lib/gat/gat.go

lib/gat/pool.go

lib/gat/pooler.go

lib/gat/pools/session/config.go

lib/gat/pools/session/metrics.go

lib/gat/pools/session/pool.go

lib/gat/pools/session/pooler.go

lib/gat/pools/transaction/config.go