…e remaining typo fixes (mimblewimble#3840)

* pibd: choose peers based on minimal height, temporary block peers for stale segments disconnecting only outbound, force request for output and rangeproof segments to avoid stuck at this case

* fix: add missing method clear_pibd_requests to commit

* peer: block only non-blocked to not increase times for several requests

* p2p: ignore last connection attempt when there is not enough outbound peers

* pibd: do not check for max cached segments on selecting next desired segment for request

* pibd: check if segment not exists at request when selecting next required

* fix: add segment to request if not exists

* fix: peers iterator to unblock blocked

* peers: keep blocked list into memory till restart or pibd finish

* sync: blocked filter

* lmdb: do not include blocked peers in selection of peer, count also blocked peers to use fallback .zip download

* pibd: increase timeout for .zip fallback