echomapPreview map files in the terminal

If you have cargo installed, you can run cargo install echomap and then run it from $HOME/.cargo/bin. More details on this are available in cargo-install documentation.
There are also binaries available for MacOS, Windows and Linux.
``` USAGE: echomap [FLAGS] [OPTIONS]
FLAGS: -a, --area Print polygon area instead of boundaries -h, --help Prints help information -V, --version Prints version information
OPTIONS:
-c, --columns
ARGS: File to parse or '-' to read stdin ```