Imports of package builder

PathSynopsis
archive/tarPackage tar implements access to tar archives.
bytesPackage bytes implements functions for the manipulation of byte slices.
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
encoding/csvPackage csv reads and writes comma-separated values (CSV) files.
encoding/jsonPackage json implements encoding and decoding of JSON as defined in RFC 7159.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/containerd/containerd/platforms
github.com/docker/docker/builder/dockerignore
github.com/moby/buildkit/api/services/control
github.com/moby/buildkit/client/llb
github.com/moby/buildkit/exporter/containerimage/exptypes
github.com/moby/buildkit/frontend/dockerfile/dockerfile2llb
github.com/moby/buildkit/frontend/gateway/client
github.com/moby/buildkit/solver/pb
github.com/moby/buildkit/util/apicaps
github.com/opencontainers/image-spec/specs-go/v1
github.com/pkg/errorsPackage errors provides simple error handling primitives.
golang.org/x/sync/errgroupPackage errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines working on subtasks of a common task.
netPackage net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
pathPackage path implements utility routines for manipulating slash-separated paths.
regexpPackage regexp implements regular expression search.
strconvPackage strconv implements conversions to and from string representations of basic data types.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.