Move api/client -> cli/command

Using
  gomvpkg
     -from github.com/docker/docker/api/client
     -to github.com/docker/docker/cli/command
     -vcs_mv_cmd 'git mv {{.Src}} {{.Dst}}'

Signed-off-by: Daniel Nephin <dnephin@docker.com>

cli/command/formatter/custom.go

@@ -0,0 +1,50 @@
+package formatter
+
+import (
+	"strings"
+)
+
+const (
+	tableKey = "table"
+
+	imageHeader        = "IMAGE"
+	createdSinceHeader = "CREATED"
+	createdAtHeader    = "CREATED AT"
+	sizeHeader         = "SIZE"
+	labelsHeader       = "LABELS"
+	nameHeader         = "NAME"
+	driverHeader       = "DRIVER"
+	scopeHeader        = "SCOPE"
+)
+
+type subContext interface {
+	fullHeader() string
+	addHeader(header string)
+}
+
+type baseSubContext struct {
+	header []string
+}
+
+func (c *baseSubContext) fullHeader() string {
+	if c.header == nil {
+		return ""
+	}
+	return strings.Join(c.header, "\t")
+}
+
+func (c *baseSubContext) addHeader(header string) {
+	if c.header == nil {
+		c.header = []string{}
+	}
+	c.header = append(c.header, strings.ToUpper(header))
+}
+
+func stripNamePrefix(ss []string) []string {
+	sss := make([]string, len(ss))
+	for i, s := range ss {
+		sss[i] = s[1:]
+	}
+
+	return sss
+}