Revert "Removed Camera from /pacjages/apps as its already included into GMS pack"

This reverts commit 4d678481854a37d7ec3d75879e42a3200ad5704c.
Revert "Removed Gallery and Gallery2 from packages/apps/ as its already included into GMS pack"

This reverts commit c22fb1abca7d4fcf4a3ba131c0ea9fb8e26a95af.