I claim the ornamental design for a connector, as shown and described.
FIG. 1 is a perspective view showing a first embodiment of a connector in accordance with my new design;
FIG. 2 is a front elevational view of the connector of FIG. 1, the rear elevational view, as well as left and right side elevational views as rotated 90 degrees relative to the front elevational view, being identical thereto;
FIG. 3 is a side elevational view rotated 45 degrees relative to the front elevational view of FIG. 2, the opposing side elevational view rotated 45 degrees relative to the rear elevational view being identical thereto;
FIG. 4 is a bottom plan view of the connector of FIG. 1; and,
FIG. 5 is a top plan view of the connector of FIG. 1.
The broken lines depict unclaimed environmental subject matter and form no part of the claimed design.