Added the module github.com/crc-org/crc/ as a dependency.
Updated `decompress.go` and `copy_test.go` in compression
so that `CopySparse` from crc-org/crc/v2/pkg/os is used instead
of the local version in `copy.go`.
Deleted `copy.go` that is not used anymore.
Signed-off-by: Mario Loriedo <mario.loriedo@gmail.com>
Mario Loriedo