Any town, city or borough, by charter or ordinance, may adopt a code of prohibited discriminatory practices and may establish or designate a board, commission, council, committee or other agency to investigate any allegation of discriminatory practice. For the purposes of sections 7-148i to 7-148n, inclusive, and subparagraph (B) of subdivision (9) of subsection (c) of § 7-148, “discriminatory practice” means a violation of § 46a-58, 46a-59, 46a-60, 46a-64, 46a-64c or 46a-66.