msgpack: CLI MessagePack utility

To install this program, run 'make install' and to remove, run
'make uninstall'. To install to a different location, specify the `PREFIX`
environment variable.

$ # install the program
$ make install

$ # uninstall the program
$ make uninstall

$ # install or uninstall in a specific location
$ PREFIX="~/local" make install

Alternatively, just copy the binary to your desired location

If you would like, you can validate binaries before running:

$ shasum -a 256 -c sha256sum
