The ornamental design for a package, as shown and described.
FIG. 1 is a perspective view of a package showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The claim comprises only the solid lines shown in the figures. The broken lines are included for the purpose of illustrating environment and form no part of the claimed design.