Imports of package metrics

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
sortPackage sort provides primitives for sorting slices and user-defined collections.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
timePackage time provides functionality for measuring and displaying time.
zgo.at/zstd/ztimePackage ztime implements functions for date and time.