AN ORDINANCE TO AMEND CHAPTERS 99 AND 115 OF THE CODE OF SUSSEX COUNTY TO DEFINE OPEN SPACE AND TO INCORPORATE OPEN SPACE REQUIREMENTS INTO THE APPLICATION AND APPROVAL PROCESS IN ALL RESIDENTIAL ZONING DISTRICTS AND IN RESIDENTIAL PLANNED COMMUNITIES AND TO CLARIFY PROVISIONS RELATING TO RESUBDIVISION, PERMITTED USES, BONDS, SITE PLANS AND OTHER APPROVAL CRITERIA