Imports of package scanner

PathSynopsis
bytesPackage bytes implements functions for the manipulation of byte slices.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
go/tokenPackage token defines constants representing the lexical tokens of the Go programming language and basic operations on tokens (printing, predicates).
ioPackage io provides basic interfaces to I/O primitives.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
sortPackage sort provides primitives for sorting slices and user-defined collections.
strconvPackage strconv implements conversions to and from string representations of basic data types.
unicodePackage unicode provides data and functions to test some properties of Unicode code points.
unicode/utf8Package utf8 implements functions and constants to support text encoded in UTF-8.