Imports of go command

PathSynopsis
cmd/go/internal/basePackage base defines shared basic pieces of the go command, in particular logging and the Command structure.
cmd/go/internal/bugPackage bug implements the “go bug” command.
cmd/go/internal/cfgPackage cfg holds configuration shared by multiple parts of the go command.
cmd/go/internal/cleanPackage clean implements the “go clean” command.
cmd/go/internal/docPackage doc implements the “go doc” command.
cmd/go/internal/envcmdPackage envcmd implements the “go env” command.
cmd/go/internal/fixPackage fix implements the “go fix” command.
cmd/go/internal/fmtcmdPackage fmtcmd implements the “go fmt” command.
cmd/go/internal/generatePackage generate implements the “go generate” command.
cmd/go/internal/helpPackage help implements the “go help” command.
cmd/go/internal/listPackage list implements the “go list” command.
cmd/go/internal/modcmdPackage modcmd implements the “go mod” command.
cmd/go/internal/modfetch
cmd/go/internal/modgetPackage modget implements the module-aware “go get” command.
cmd/go/internal/modload
cmd/go/internal/runPackage run implements the “go run” command.
cmd/go/internal/telemetrycmdPackage telemetrycmd implements the "go telemetry" command.
cmd/go/internal/telemetrystats
cmd/go/internal/test
cmd/go/internal/toolPackage tool implements the “go tool” command.
cmd/go/internal/toolchainPackage toolchain implements dynamic switching of Go toolchains.
cmd/go/internal/trace
cmd/go/internal/versionPackage version implements the “go version” command.
cmd/go/internal/vetPackage vet implements the “go vet” command.
cmd/go/internal/work
cmd/go/internal/workcmdPackage workcmd implements the “go work” command.
cmd/internal/telemetryPackage telemetry is a shim package around the golang.org/x/telemetry and golang.org/x/telemetry/counter packages that has code build tagged out for cmd_go_bootstrap so that the bootstrap Go command does not depend on net (which is a dependency of golang.org/x/telemetry/counter on Windows).
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
internal/buildcfgPackage buildcfg provides access to the build configuration described by the current environment.
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
runtime/tracePackage trace contains facilities for programs to generate traces for the Go execution tracer.
slicesPackage slices defines various functions useful with slices of any type.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.