Imports of convertor command

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
database/sqlPackage sql provides a generic interface around SQL (or SQL-like) databases.
github.com/containerd/accelerated-container-image/cmd/convertor/builder
github.com/containerd/accelerated-container-image/cmd/convertor/database
github.com/go-sql-driver/mysqlPackage mysql provides a MySQL driver for Go's database/sql package.
github.com/sirupsen/logrusPackage logrus is a structured logger for Go, completely API compatible with the standard library logger.
github.com/spf13/cobraPackage cobra is a commander providing a simple interface to create powerful modern CLI interfaces.
osPackage os provides a platform-independent interface to operating system functionality.
os/signalPackage signal implements access to incoming signals.