NEW YORK — Clients can text their lawyers to double-check hearing times. Potential customers may message a dog breeder to find out the due date of the next litter. More and more, people who want to get in touch with small businesses are using texts or online chats rather than e-mails or phone calls.Company owners are responding in kind, communicating more on the fly and in short bursts. They’re finding that texting, online chatting and messaging help them get and give information faster and run their businesses …