Approving Departure BD-4-21, a Request by Green Branch, LLC And GBR Mill Branch, LLC for a Departure From Section 27-558(a) of the Prince George’s County Zoning Ordinance to Permit a Reduction in the Dimensions of Standard-Sized Perpendicular Parking Spaces From 9.5 Feet by 19 Feet to 9.0 Feet by 18 Feet for the Multi-Family and Townhouse Sections of Mill Branch Crossing Proposed in Detailed Site Plan #DSP-20003