The ornamental design for a package, as shown and described.
FIG. 1 is a side, front, and top perspective view of a package showing my new design;
FIG. 2 is a front view of a package of FIG. 1;
FIG. 3 is a back view of a package of FIG. 1;
FIG. 4 is a first side view of a package of FIG. 1;
FIG. 5 is a second side view of a package of FIG. 1;
FIG. 6 is a top view of a package of FIG. 1; and,
FIG. 7 is a bottom view of a package of FIG. 1.
The features shown in broken lines are portions of the article that form no part of the claimed design. Additionally, the stippling in the drawings represents a contrast in appearance from non-stippled areas.