func (e *GoogleSearch) String() string {
	return strings.Join(e.tags, " ")
}
String converts all tags to a single request
package googlesearch
import (
	"net/url"
	"strings"
)
const (
	searchURL    = "https://www.google.com/search"
	siteTag      = "site:"
	urlTag       = "inurl:"
	filetypeTag  = "filetype:"
	cacheTag     = "cache:"
	relatedTag   = "related:"
	extTag       = "ext:"
	excludeTag   = "-"
	intitleTag   = "intitle:"
	intextTag    = "intext:"
	operatorOr   = "|"
	operatorAnd  = "+"
	bookTag      = "book:"
	ipTag        = "ip:"
	mapsTag      = "maps:"
	allintextTag = "allintext:"
	infoTag      = "info:"
	inanchorTag  = "inanchor:"
)
type GoogleSearch struct {
	tags []string
}
func New() *GoogleSearch {
	return &GoogleSearch{}
}
func (e *GoogleSearch) join(tag string, value string, quotes bool) string {
	if quotes {
		return tag + "\"" + value + "\""
	}
	return tag + value
}