Imports of format-schema command

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/google/gnostic/jsonschemaPackage jsonschema supports the reading, writing, and manipulation of JSON Schemas.
osPackage os provides a platform-independent interface to operating system functionality.
pathPackage path implements utility routines for manipulating slash-separated paths.