SPRINGFIELD — To show that state laws on stalking were unconstitutionally broad, the state’s highest court this morning suggested they could be used to criminalize a quintessential piece of American democracy: angry town hall meetings.The law basically says a person commits stalking when they engage in a course of conduct, characterized by multiple, nonconsensual communications to or about someone, that they know or should know could cause distress.But that definition includes “a host of social …