Codiscope, a Boston startup that aims to help developers make software more secure, has raised $5 million in new funding, according to a recent regulatory filing. The startup raised the new funding from a total of three investors, according to the Feb. 10 filing from the U.S. Securities and Exchange Commission. Those listed on the filing include executives from Virginia-based security software firm Cigital - including Cigital CEO John Wyatt and executives Gary McGraw and Karin Holst - along…