Imports of docsgen command

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/docker/buildx/commands
github.com/docker/cli/cli/command
github.com/pkg/errorsPackage errors provides simple error handling primitives.
github.com/spf13/cobraPackage cobra is a commander providing a simple interface to create powerful modern CLI interfaces.
github.com/spf13/pflagPackage pflag is a drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
io/ioutilPackage ioutil implements some I/O utility functions.
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.