Imports of package selectors

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
k8s.io/apimachinery/pkg/labelsPackage labels implements a simple label system, parsing and matching selectors with sets of labels.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.