AN ORDINANCE TO AMEND CHAPTER 99, ARTICLES I, III & IV, SECTIONS 99-5 “DEFINITIONS”, 99-21, “PUBLIC SITES AND OPEN SPACES”, §99-23 “PRELIMINARY PLAT REQUIREMENTS” AND CHAPTER 115, ARTICLES I & XXVIII, SECTION 115-4 “DEFINITIONS AND WORD USAGE” AND §115-220 “PRELIMINARY SITE PLAN REQUIREMENTS” OF THE CODE OF SUSSEX COUNTY REGARDING OPEN SPACE