The ornamental design for furniture, as shown and described.
FIG. 1 is a front perspective view of the furniture of the present invention with the dotted lines depicting environmental structure and forming no part of the claimed design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is an end view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front perspective view of a second embodiment of the furniture of the present invention showing my new design;