The ornamental design for a package, as shown and described.
FIG. 1 is a front view of a package according to the present invention;
FIG. 2 is a back view of the package of FIG. 1;
FIG. 3 is a first side view of the package of FIG. 1;
FIG. 4 is a second side view of the package of FIG. 1;
FIG. 5 is a top view of the package of FIG. 1;
FIG. 6 is a bottom view of the package of FIG. 1; and,
FIG. 7 is a perspective view of the package of FIG. 1.
The portions of the drawings shown in broken lines are illustrated for the purpose of showing the environment of the package and form no part of the claimed design.