cuprated: add pop blocks command #3074

Job	Run time
fmt	9s
typo	7s
wasm-32-bit-support (cuprate-epee-encoding)	45s
ci-docker (debian:stable, apt update && apt -y install build-essential curl cmake git pkg-config ...	56m 58s
wasm-32-bit-support (cuprate-fixed-bytes)	29s
ci-docker (fedora:latest, dnf install --assumeyes @development-tools gcc gcc-c++ cmake git openss...	56m 44s
wasm-32-bit-support (cuprate-rpc-types)	1m 18s
ci-docker (archlinux:latest, pacman -Syyu --noconfirm base-devel git cmake openssl)	57m 53s
ci (windows-2022)	1h 20m 19s
ci (ubuntu-22.04-arm)	47m 0s
ci (macos-15)	42m 50s
ci (macos-13)	1h 37m 58s
ci (ubuntu-22.04)	49m 12s
	8h 11m 42s

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