In the interest of introducing new D.C. residents to the finest in District drinking, and old residents to spots they may not have heard of, DCist introduces our latest feature, Coalition of the Swilling. Who knew someone would open a bar near the Potomac Ave. Metro station? Joe Englert, that’s who. The man behind Capitol Lounge, new owner of the old Zack’s space, and the first man to move in hard on H Street isn’t…