func (t *tree) Items() []Tree {
	return t.items
}
Items returns all items in the tree
package gotree
import (
	"strings"
)
const (
	newLine      = "\n"
	emptySpace   = "    "
	middleItem   = "├── "
	continueItem = "│   "
	lastItem     = "└── "
)
type (
	tree struct {
		text  string
		items []Tree
	}
	Tree interface {
		Add(text string) Tree
		AddTree(tree Tree)
		Items() []Tree
		Text() string
		Print() string
	}
	printer struct {
	}
	Printer interface {
		Print(Tree) string
	}
)
func New(text string) Tree {
	return &tree{
		text:  text,
		items: []Tree{},
	}
}
func (t *tree) Add(text string) Tree {
	n := New(text)
	t.items = append(t.items, n)
	return n
}
func (t *tree) AddTree(tree Tree) {
	t.items = append(t.items, tree)
}
func (t *tree) Text() string {
	return t.text
}