Rename daemon CLI command to cache (#4808)

* internal/cmd/wrapper: add deprecation wrapper

The deprecation wrapper can be used to display a warning to callers
when a command is deprecated.

* all: rename daemon to cache

Rename the boundary daemon command to boundary cache. This
avoids confusion with future client/daemons.

* changes daemon to cache in nav

---------

Co-authored-by: Robin Beck <stellarsquall@protonmail.ch>

internal/clientcache/cmd/cache/cache.go

@@ -0,0 +1,60 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
+
+package cache
+
+import (
+	"strings"
+
+	"github.com/hashicorp/boundary/internal/cmd/base"
+	"github.com/mitchellh/cli"
+	"github.com/posener/complete"
+)
+
+var (
+	_ cli.Command             = (*StartCommand)(nil)
+	_ cli.CommandAutocomplete = (*StartCommand)(nil)
+)
+
+type CacheCommand struct {
+	*base.Command
+}
+
+func (c *CacheCommand) Synopsis() string {
+	return "Manages the client side Boundary cache"
+}
+
+func (c *CacheCommand) Help() string {
+	helpText := `
+Usage: boundary cache [sub command] [options]
+
+  This command allows interacting with the Boundary cache.
+
+  Start a cache:
+
+      $ boundary cache start
+
+  For a full list of examples, please see the documentation.
+
+`
+	return strings.TrimSpace(helpText)
+}
+
+func (c *CacheCommand) Flags() *base.FlagSets {
+	return c.FlagSet(base.FlagSetNone)
+}
+
+func (c *CacheCommand) AutocompleteArgs() complete.Predictor {
+	return complete.PredictNothing
+}
+
+func (c *CacheCommand) AutocompleteFlags() complete.Flags {
+	return c.Flags().Completions()
+}
+
+func (c *CacheCommand) Run(args []string) int {
+	if len(args) >= 2 && args[1] == "daemon" {
+		c.UI.Warn("The `boundary daemon` command is deprecated, use `boundary cache` instead")
+	}
+	return cli.RunResultHelp
+}