Simple CLI for LockSwap

search first 10 items of avaliable sUDT cells:

$ cargo run -- search_sudt

search first 10 items of avaliable swap orders:

$ cargo run -- search_lockswap

make sUDT sell order:

$ cargo run -- make_order --sudt <sudt_offset_in_search_list> --ckb <CKB order>

take sUDT sell order:

$ cargo run -- take_order --lockswap <lockswap_offset_in_search_list>