A municipal corporation, in addition to the powers granted by § 15.2-1102, shall have all the powers granted to it in its charter; and nothing contained in this article shall be construed to in anywise repeal, amend, impair or affect any provision of any existing charter or of any charter hereafter granted to a municipal corporation or any provision of any other applicable law, unless such amendment or repeal so provides. Whenever there appears to be a conflict between any provision of this article, or any amendment hereof, and that of any charter of a municipal corporation, the provisions of the charter shall be construed and held to take precedence over such conflicting or apparently conflicting provisions of this article or of any amendment hereof.