helper_map.go
func NewHelperMap() (HelperMap, error) {
	hm := HelperMap{
		helpers: map[string]interface{}{},
		moot:    &sync.Mutex{},
	}

	err := hm.AddMany(Helpers.Helpers())
	if err != nil {
		return hm, err
	}
	return hm, nil
}
func NewHelperMap() (HelperMap, error) {
	hm := HelperMap{
		helpers: map[string]interface{}{},
		moot:    &sync.Mutex{},
	}

	err := hm.AddMany(Helpers.Helpers())
	if err != nil {
		return hm, err
	}
	return hm, nil
}
// NewHelperMap containing all of the "default" helpers from "plush.Helpers".