(respondents challenge Texas statute requiring business offering live nude entertainment and consumption of alcohol on premises to remit $5 fee for each customer admitted to state comptroller; Texas Supreme Court concluded fee was “content-neutral” and satisfied four-part “O’Brien” test, thus, did not violate First Amendment; $5 fee was minimal restriction on business and business seeking to avoid fee need only bar alcohol consumption; state met “O’Brien” factors, because state’s interest unrelated to suppression of free expression and restriction on freedoms under First Amendment no greater than essential to further state’s interest; Texas Court of Appeals ruling reversed and case remanded to trial court to consider issues raised by respondents).