(Reuters) – Billionaire Elon Musk’s social media firm Twitter will introduce an ‘Official’ label for select verified accounts including major media outlets and governments, when it launches its new $8 service with the blue verification mark, its early stage products executive Esther Crawford said on Tuesday. “Not all previously verified accounts will get the “Official” label and the label is not available for purchase. Accounts that will receive it include government accounts, commercial companies, business partners, major media outlets, publishers and some public figures,” Crawford tweeted. “…