Imports of package note

PathSynopsis
bytesPackage bytes implements functions for the manipulation of byte slices.
crypto/ed25519Package ed25519 implements the Ed25519 signature algorithm.
crypto/sha256Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
encoding/base64Package base64 implements base64 encoding as specified by RFC 4648.
encoding/binaryPackage binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
errorsPackage errors implements functions to manipulate errors.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
ioPackage io provides basic interfaces to I/O primitives.
strconvPackage strconv implements conversions to and from string representations of basic data types.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.
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.