feat(client): add get_block_infos and deprecate get_blocks#164

oleonardolima merged 4 commits intobitcoindevkit:release/0.12.xbitcoindevkit/rust-esplora-client:release/0.12.xfrom

luisschwab:chore/deprecate-get-blocksluisschwab/rust-esplora-client:chore/deprecate-get-blocksCopy head branch name to clipboard