Imports of toml-test-encoder command

PathSynopsis
encoding/jsonPackage json implements encoding and decoding of JSON as defined in RFC 7159.
flagPackage flag implements command-line flag parsing.
github.com/BurntSushi/tomlPackage toml implements decoding and encoding of TOML files.
github.com/BurntSushi/toml/internal/tag
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
pathPackage path implements utility routines for manipulating slash-separated paths.