Civil rights — Speech — Religion — Free exercise — Same-sex couple filed charge with Colorado Civil Rights Commission alleging discrimination on basis of sexual orientation in violation of state Anti-Discrimination Act after baker refused to create a cake for their wedding because of his religious opposition to same-sex marriages — State civil rights commission’s consideration of case without religious neutrality that Constitution requires violated Free Exercise Clause — Commission’s hostility toward baker’s sincere religious beliefs was inconsistent with First Amendment’s guarantee that laws be applied in a manner that is neutral toward religion — Official expressions of hostility to religion in some of the commissioners’ comments were inconsistent with what the Free Exercise Clause requires — Baker was entitled to a neutral decisionmaker who would give full and fair consideration to his religious objection as he sought to assert it in all of the circumstances in which case was presented, considered, and decided