NEW YORK — Suing your bank or debt collector might be getting a whole lot easier.The Consumer Financial Protection Bureau is considering new regulations that would severely curtail a contentious practice called mandatory arbitration, which is when consumers are forced to take their disputes to a third-party mediator instead of a court of law.It is something consumer advocates have long argued does a disservice to people who have disputes with banks, credit card issuers and other financial service providers.Many …