Harford County Republican Councilmember Aaron Penman was ordered reinstated to his seat Friday by a county judge, but an attorney representing the county and Harford County Executive Bob Cassilly (R) said they plan an appeal. (File photo by Bryan. P. Sears/Maryland Matters)A judge Friday ordered Aaron Penman reinstated to the Harford County Council seat he was ousted from more than a year ago. Harford County Circuit Court Judge W. Michel Pierson…