Imports of channel_binding command

PathSynopsis
bufioPackage bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O.
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
crypto/tlsPackage tls partially implements TLS 1.2, as specified in RFC 5246, and TLS 1.3, as specified in RFC 8446.
database/sqlPackage sql provides a generic interface around SQL (or SQL-like) databases.
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/google/uuidPackage uuid generates and inspects UUIDs.
github.com/microsoft/go-mssqldbPackage mssql is Microsoft's official Go driver for SQL Server and Azure SQL Database.
github.com/microsoft/go-mssqldb/integratedauth/krb5Package krb5 implements the integratedauth.IntegratedAuthenticator interface in order to provide kerberos/active directory (Windows) based authentication.
github.com/microsoft/go-mssqldb/msdsn
ioPackage io provides basic interfaces to I/O primitives.
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
timePackage time provides functionality for measuring and displaying time.